[Keymap] Added mverteuil keymaps and userspace common code (#7876)

* Added mverteuil content

- Userspace
- Knops keymap
- Preonic keymaps

* Simplified and replaced some magic numbers

* Convert tabs to spaces

* Clean up LED handling, better animation, better layer init

* Use get_highest_layer per @drashna suggestion

* Reorder prototypes/reformat

* Simplified/more expessive and fixed initial layer LED

* Remove changes to git ignored files

11 files changed, 1350 insertions, 0 deletions

diff --git a/keyboards/knops/mini/keymaps/mverteuil/config.h b/keyboards/knops/mini/keymaps/mverteuil/config.h
new file mode 100644
index 0000000000..f72145c5a8
--- /dev/null
+++ b/keyboards/knops/mini/keymaps/mverteuil/config.h
@@ -0,0 +1,25 @@
+/* Copyright 2017 Pawnerd, 2019 Matthew de Verteuil
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#if defined(AUDIO_ENABLE)
+    #define AUDIO_CLICKY
+    #define B5_AUDIO
+    #define C6_AUDIO
+    #define STARTUP_SONG SONG(ZELDA_PUZZLE)
+    #define GOODBYE_SONG SONG(COIN_SOUND)
+#endif
diff --git a/keyboards/knops/mini/keymaps/mverteuil/keymap.c b/keyboards/knops/mini/keymaps/mverteuil/keymap.c
new file mode 100644
index 0000000000..5ecba0d5a1
--- /dev/null
+++ b/keyboards/knops/mini/keymaps/mverteuil/keymap.c
@@ -0,0 +1,306 @@
+#include QMK_KEYBOARD_H
+
+#define MAXIMIZ A(G(KC_F))
+#define NXTDSPL C(A(G(KC_RIGHT)))
+#define BTMHALF A(G(KC_DOWN))
+#define TOPHALF A(G(KC_UP))
+#define NXTTHRD SS_LCTL(SS_LALT(SS_TAP(X_RIGHT)))
+#define PRVTHRD C(A(KC_LEFT))
+
+#define LT_MSTP LT(_LAYER_SELECT, KC_MSTP)
+#define LT_ESC LT(_LAYER_SELECT, KC_ESC)
+#define LT_NXTH TD(TD_SPEC)
+
+#define writeLayerLedState(layer) writePin(layer)
+#define layer_led_0_off B6, false
+#define layer_led_1_off D5, true
+#define layer_led_2_off B0, false
+#define layer_led_0_on B6, true
+#define layer_led_1_on D5, false
+#define layer_led_2_on B0, true
+
+void led_init_animation(void);
+void led_set_layer(int layer);
+void td_spectacles_finish(qk_tap_dance_state_t *state, void *user_data);
+void td_spectacles_reset(qk_tap_dance_state_t *state, void *user_data);
+
+enum layer_led_mode {
+    ALL_LAYERS_OFF = -1,
+    LAYER_0,
+    LAYER_1,
+    LAYER_2,
+    LAYER_3,
+    LAYER_4,
+    LAYER_5,
+    ALL_LAYERS_ON,
+};
+
+enum mini_layers {
+    _MEDIA,
+    _COPYPASTA,
+    _SPECTACLES,
+    _LAYER_3,
+    _LAYER_4,
+    _LAYER_5,
+    _LAYER_SELECT,
+};
+
+enum { TD_SPEC = 0 };
+
+qk_tap_dance_action_t tap_dance_actions[] = {
+    /* Tap once for spectacles macro, hold for layer toggle */
+    [TD_SPEC] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, td_spectacles_finish, td_spectacles_reset),
+};
+
+/*
+ *   Key Layout
+ *   _____   _____   _____
+ *  |     | |     | |     |
+ *  |  1  | |  2  | |  3  |
+ *  |_____| |_____| |_____|
+ *   _____   _____   _____
+ *  |     | |     | |     |
+ *  |  4  | |  5  | |  6  |
+ *  |_____| |_____| |_____|
+ *
+ *  Hold 1 and:
+ *    - press 4, 5, or 6 to change layers
+ *    - press 3 to reset, or press and hold 3 to enter DFU programming mode
+ *
+ *  If something prevents you from using the above to reprogram, you can hold 3 while powering on as a fallback.
+ */
+
+/* clang-format off */
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /*
+     *  Layer 0 (Media Keys)
+     *   _____   _____   _____
+     *  |     | |     | |     |
+     *  |Stop | |VolUp| |Play |
+     *  |_____| |_____| |_____|
+     *   _____   _____   _____
+     *  |     | |     | |     |
+     *  |Prev | |VolDn| |Next |
+     *  |_____| |_____| |_____|
+     *
+     */
+    [_MEDIA] = LAYOUT(
+        LT_MSTP, KC_VOLU, KC_MPLY,
+        KC_MPRV, KC_VOLD, KC_MNXT
+    ),
+
+    /*
+     *  Layer 1 (Copy and Paste Macros)
+     *   _____   _____   _____
+     *  |     | |     | |     |
+     *	| ESC | |Ctl+Z| |CSf+Z|
+     *	|_____| |_____| |_____|
+     *   _____   _____   _____
+     *  |     | |     | |     |
+     *	|Ctl+X| |Ctl+C| |Ctl+V|
+     *	|_____| |_____| |_____|
+     *
+     */
+
+    [_COPYPASTA] = LAYOUT(
+        LT_ESC,  C(KC_Z), C(S(KC_Z)),
+        C(KC_X), C(KC_C), C(KC_V)
+    ),
+
+    /*
+     *   Layer 2 (Spectacles Macros)
+     *   _LT&_   _____   _____
+     *  | Win | | Win | | Win |
+     *  | Next| | Top | |Mximze
+     *  |_1/3_| |_1/2_| |_____|
+     *   _____	 _____	 _____
+     *  | Win | | Win | | Win |
+     *  | Prev| | Bot | | Next|
+     *  |_1/3_| |_1/2_| |Displ|
+     *
+     */
+    [_SPECTACLES] = LAYOUT(
+        LT_NXTH,TOPHALF,MAXIMIZ,
+        PRVTHRD,BTMHALF,NXTDSPL
+    ),
+
+    /*
+     *  Layer 6 (Layer Select/Reset)
+     *   _____   _____   _____
+     *  |     | |     | |     |
+     *  |None | |None | |Reset|
+     *  |_____| |_____| |_____|
+     *   _____   _____   _____
+     *  |Layer| |Layer| |Layer|
+     *  |  0  | |  1  | |  2  |
+     *  |_____| |_____| |_____|
+     *
+     *  Layers 0, 1, and 2 have the top left button held to activate this layer.
+     *  Then press the specific layer to switch to it.
+     *
+     */
+    [_LAYER_SELECT] = LAYOUT(
+        _______, _______, RESET,
+        TO(_MEDIA),TO(_COPYPASTA),TO(_SPECTACLES)
+    )
+};
+/* clang-format on */
+
+/*
+ *	Knops Mini LED Numbers:
+ *   _____   _____   _____
+ *  |     | |     | |     |
+ *  |  1  | |  2  | |  3  |    <---
+ *  |_____| |_____| |_____|       |      These LEDs are called 'Switch LEDs'
+ *   _____   _____   _____        |----- To turn on/off these leds, use:
+ *  |     | |     | |     |       |          set_switch_led( [1-6], [true/false]);
+ *  |  4  | |  5  | |  6  |    <---
+ *  |_____| |_____| |_____|
+ *
+ *	 < 0 >   < 1 >   < 2 >     <---      These front-LEDs are called 'Layer LEDs'
+ *                                       To turn on/off these leds, use:
+ *                                           set_layer_led( [0-2], [true/false] );
+ */
+
+void set_switch_led(int ledId, bool state) {
+    switch (ledId) {
+        case 1:
+            writePin(D7, state);
+            break;
+        case 2:
+            writePin(readPin(B7) ? C6 : C7, state);
+            break;
+        case 3:
+            writePin(D4, state);
+            break;
+        case 4:
+            writePin(E6, state);
+            break;
+        case 5:
+            writePin(B4, state);
+            break;
+        case 6:
+            writePin(D6, state);
+            break;
+    }
+}
+
+void set_layer_led(int layerLedMode) {
+    writeLayerLedState(layer_led_0_off);
+    writeLayerLedState(layer_led_1_off);
+    writeLayerLedState(layer_led_2_off);
+
+    switch (layerLedMode) {
+        case ALL_LAYERS_OFF:
+            break;
+        case LAYER_0:
+            writeLayerLedState(layer_led_0_on);
+            break;
+        case LAYER_1:
+            writeLayerLedState(layer_led_1_on);
+            break;
+        case LAYER_2:
+            writeLayerLedState(layer_led_2_on);
+            break;
+        case LAYER_3:
+            writeLayerLedState(layer_led_0_on);
+            writeLayerLedState(layer_led_1_on);
+            break;
+        case LAYER_4:
+            writeLayerLedState(layer_led_1_on);
+            writeLayerLedState(layer_led_2_on);
+            break;
+        case LAYER_5:
+            writeLayerLedState(layer_led_0_on);
+            writeLayerLedState(layer_led_2_on);
+            break;
+        default:
+            writeLayerLedState(layer_led_0_on);
+            writeLayerLedState(layer_led_1_on);
+            writeLayerLedState(layer_led_2_on);
+            break;
+    }
+}
+
+void led_init_animation() {
+    for (int i = ALL_LAYERS_OFF; i <= ALL_LAYERS_ON; i++) {
+        led_set_layer(i);
+    }
+
+    led_set_layer(LAYER_0);
+}
+
+/*
+ * This function led_set_layer gets called when you switch between layers.
+ * It allows you to turn on and off leds for each different layer and do
+ * other cool stuff.
+ */
+void led_set_layer(int layer) {
+    switch (layer) {
+        case ALL_LAYERS_OFF:
+            set_switch_led(1, false);
+            set_switch_led(2, false);
+            set_switch_led(3, false);
+            set_switch_led(4, false);
+            set_switch_led(5, false);
+            set_switch_led(6, false);
+
+        case _LAYER_SELECT:
+            set_switch_led(1, false);
+            set_switch_led(2, false);
+            set_switch_led(3, false);
+            set_switch_led(4, true);
+            set_switch_led(5, true);
+            set_switch_led(6, true);
+            break;
+
+        default:
+            set_switch_led(1, true);
+            set_switch_led(2, true);
+            set_switch_led(3, true);
+            set_switch_led(4, true);
+            set_switch_led(5, true);
+            set_switch_led(6, true);
+            break;
+    }
+
+    set_layer_led(layer);
+}
+
+/*
+ * Prepare all LED ports for output
+ */
+void led_init_ports() {
+    setPinOutput(D7);  // Switch 1 LED
+    setPinOutput(C6);  // Switch 2 LED Pin1
+    setPinOutput(C7);  // Switch 2 LED Pin2
+    setPinOutput(D4);  // Switch 3 LED
+    setPinOutput(E6);  // Switch 4 LED
+    setPinOutput(B4);  // Switch 5 LED
+    setPinOutput(D6);  // Switch 6 LED
+    setPinOutput(D5);  // Layer 0 LED
+    setPinOutput(B6);  // Layer 1 LED
+    setPinOutput(B0);  // Layer 2 LED
+}
+
+// Runs on layer change, no matter where the change was initiated
+layer_state_t layer_state_set_user(layer_state_t state) {
+    set_layer_led(get_highest_layer(state));
+    led_set_layer(get_highest_layer(state));
+    return state;
+}
+
+void matrix_init_user(void) {
+    led_init_ports();
+    led_init_animation();
+}
+
+void td_spectacles_finish(qk_tap_dance_state_t *state, void *user_data) {
+    if (state->pressed) {
+        layer_on(_LAYER_SELECT);
+    } else {
+        SEND_STRING(NXTTHRD);
+    }
+}
+
+void td_spectacles_reset(qk_tap_dance_state_t *state, void *user_data) { layer_off(_LAYER_SELECT); }
diff --git a/keyboards/knops/mini/keymaps/mverteuil/readme.md b/keyboards/knops/mini/keymaps/mverteuil/readme.md
new file mode 100644
index 0000000000..46ea015832
--- /dev/null
+++ b/keyboards/knops/mini/keymaps/mverteuil/readme.md
@@ -0,0 +1 @@
+# mverteuil does knops mini
diff --git a/keyboards/knops/mini/keymaps/mverteuil/rules.mk b/keyboards/knops/mini/keymaps/mverteuil/rules.mk
new file mode 100644
index 0000000000..91a53d56ac
--- /dev/null
+++ b/keyboards/knops/mini/keymaps/mverteuil/rules.mk
@@ -0,0 +1,6 @@
+BACKLIGHT_ENABLE = no
+CONSOLE_ENABLE = no
+TAP_DANCE_ENABLE = yes
+MOUSEKEY_ENABLE = no
+AUDIO_ENABLE = no
+
diff --git a/keyboards/preonic/keymaps/mverteuil/config.h b/keyboards/preonic/keymaps/mverteuil/config.h
new file mode 100644
index 0000000000..51b278f647
--- /dev/null
+++ b/keyboards/preonic/keymaps/mverteuil/config.h
@@ -0,0 +1,39 @@
+#ifdef AUDIO_ENABLE
+#    if __has_include("copyright.h")
+#        include "copyright.h"
+#    endif
+
+#    define AUDIO_CLICKY_DELAY_DURATION 0
+#    define AUDIO_CLICKY_FREQ_DEFAULT 100.0f
+#    define AUDIO_CLICKY_FREQ_MIN 61.0f
+#    define AUDIO_CLICKY_FREQ_RANDOMNESS 0.2f
+#    define DAC_SAMPLE_MAX 7000U
+#    define STARTUP_SONG SONG(WORKMAN_SOUND)
+#    define GOODBYE_SONG SONG(COIN_SOUND)
+#endif
+
+#define MUSIC_MASK (keycode != KC_NO)
+
+/*
+ * MIDI options
+ */
+
+/* Prevent use of disabled MIDI features in the keymap */
+//#define MIDI_ENABLE_STRICT 1
+
+/* enable basic MIDI features:
+   - MIDI notes can be sent when in Music mode is on
+*/
+
+#define MIDI_BASIC
+
+/* enable advanced MIDI features:
+   - MIDI notes can be added to the keymap
+   - Octave shift and transpose
+   - Virtual sustain, portamento, and modulation wheel
+   - etc.
+*/
+//#define MIDI_ADVANCED
+
+/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
+//#define MIDI_TONE_KEYCODE_OCTAVES 2
diff --git a/keyboards/preonic/keymaps/mverteuil/keymap.c b/keyboards/preonic/keymaps/mverteuil/keymap.c
new file mode 100644
index 0000000000..621d60be6a
--- /dev/null
+++ b/keyboards/preonic/keymaps/mverteuil/keymap.c
@@ -0,0 +1,508 @@
+/* Copyright 2015-2017 Jack Humbert, 2019 Matthew de Verteuil
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+#include "muse.h"
+#include "mverteuil.h"
+
+/* TapDance Aliases */
+#define TD_LBRK TD(TD_BRACKETS_LEFT)
+#define TD_RBRK TD(TD_BRACKETS_RIGHT)
+#define TD_CLES TD(TD_CONTROL_ESCAPE)
+#define TD_NPFR TD(TD_NUMPAD_FUNCTIONROW)
+#define TD_PLEQ TD(TD_PLUS_EQUALS)
+#define TD_SCOL TD(TD_SEMICOLON_COLON)
+#define TD_SLQU TD(TD_SLASH_QUESTION)
+#define TD_SQDQ TD(TD_QUOTE_DOUBLEQUOTE)
+#define TD_USMI TD(TD_UNDERSCORE_MINUS)
+
+/* Sentinel value for invalid tap dance exit */
+#define TAP_DANCE_NO_MATCH 64
+
+enum preonic_layers {
+    _QWERTY,
+    _FUNCTIONROW,
+    _NUMPAD,
+    _LOWER,
+    _RAISE,
+    _ADJUST,
+};
+
+enum preonic_keycodes {
+    QWERTY = SAFE_RANGE,
+    NUMPAD,
+    LOWER,
+    RAISE,
+    BACKLIT,
+};
+
+enum tapdance_keycodes {
+    TD_BRACKETS_LEFT,
+    TD_BRACKETS_RIGHT,
+    TD_CONTROL_ESCAPE,
+    TD_NUMPAD_FUNCTIONROW,
+    TD_PLUS_EQUALS,
+    TD_QUOTE_DOUBLEQUOTE,
+    TD_SEMICOLON_COLON,
+    TD_SLASH_QUESTION,
+    TD_UNDERSCORE_MINUS,
+};
+
+typedef enum {
+    SINGLE_TAP,
+    SINGLE_HOLD,
+    DOUBLE_TAP,
+    DOUBLE_HOLD,
+    TRIPLE_TAP,
+    TRIPLE_HOLD,
+} t_tap_state;
+
+typedef struct {
+    t_tap_state left_brackets;
+    t_tap_state numpad_funcrow;
+    t_tap_state right_brackets;
+} t_tap;
+
+t_tap_state get_tapdance_state(qk_tap_dance_state_t *state);
+
+void td_numpad_funcrow_finished(qk_tap_dance_state_t *state, void *user_data);
+void td_numpad_funcrow_reset(qk_tap_dance_state_t *state, void *user_data);
+void td_brackets_left_finished(qk_tap_dance_state_t *state, void *user_data);
+void td_brackets_left_reset(qk_tap_dance_state_t *state, void *user_data);
+void td_brackets_right_finished(qk_tap_dance_state_t *state, void *user_data);
+void td_brackets_right_reset(qk_tap_dance_state_t *state, void *user_data);
+
+/* Tap Dance Definitions */
+qk_tap_dance_action_t tap_dance_actions[] = {
+    /* Tap once for left parenthesis, twice for left bracket, thrice for left brace */
+    [TD_BRACKETS_LEFT] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, td_brackets_left_finished, td_brackets_left_reset),
+    /* Tap once for right parenthesis, twice for right bracket, thrice for right brace */
+    [TD_BRACKETS_RIGHT] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, td_brackets_right_finished, td_brackets_right_reset),
+    /* Tap once for control, twice for escape */
+    [TD_CONTROL_ESCAPE] = ACTION_TAP_DANCE_DOUBLE(KC_LCTRL, KC_ESCAPE),
+    /* Tap once for plus, twice for equals */
+    [TD_PLUS_EQUALS] = ACTION_TAP_DANCE_DOUBLE(KC_PLUS, KC_EQUAL),
+    /* Hold for numpad, tap twice to toggle function row, double hold for temporary function row */
+    [TD_NUMPAD_FUNCTIONROW] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, td_numpad_funcrow_finished, td_numpad_funcrow_reset),
+    /* Tap once for single quote, twice for double quote */
+    [TD_QUOTE_DOUBLEQUOTE] = ACTION_TAP_DANCE_DOUBLE(KC_QUOTE, KC_DOUBLE_QUOTE),
+    /* Tap once for semicolon, twice for colon */
+    [TD_SEMICOLON_COLON] = ACTION_TAP_DANCE_DOUBLE(KC_SCOLON, KC_COLON),
+    /* Tap once for slash, twice for question mark */
+    [TD_SLASH_QUESTION] = ACTION_TAP_DANCE_DOUBLE(KC_SLASH, KC_QUESTION),
+    /* Tap once for underscore, twice for minus */
+    [TD_UNDERSCORE_MINUS] = ACTION_TAP_DANCE_DOUBLE(KC_UNDERSCORE, KC_MINUS),
+};
+
+/* clang-format off */
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  | _  - | +  = | Bksp |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | '  " |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |CtlEsc|   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  | ;  : | Enter|
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |  Up  | GUI  |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |NP FRw| Ctrl | Alt  | GUI  |Lower |    Space    |Raise | /  ? | Left | Down |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = LAYOUT_preonic_1x2uC (
+  KC_GRV,  KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, TD_USMI, TD_PLEQ, KC_BSPC,
+  KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    TD_SQDQ,
+  TD_CLES, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    TD_SCOL, KC_ENT,
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_UP,   KC_RGUI,
+  TD_NPFR, KC_LCTL, KC_LALT, KC_LGUI, LOWER,        KC_SPC,      RAISE,   TD_SLQU, KC_LEFT, KC_DOWN, KC_RGHT
+),
+
+/* Function Row
+ * ,-----------------------------------------------------------------------------------.
+ * |  F12 |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |  F11 |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_FUNCTIONROW] = LAYOUT_preonic_1x2uC (
+  KC_F12,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  _______, _______, _______, _______, _______,      _______,     _______, _______, _______, _______, _______
+),
+
+/* Numpad
+ * ,------+------+------+------+------+------|------+------+------+------+------+------.
+ * |      |      |      |      |      |      |      | Tab  |  /   |  *   |Bksp  |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |  7   |  8   |  9   |  -   |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |  4   |  5   |  6   |  +   |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |  1   |  2   |  3   |Enter |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |  0   |  .   |Enter |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_NUMPAD] = LAYOUT_preonic_1x2uC (
+  _______, _______, _______, _______, _______, _______, _______, KC_TAB,  KC_SLSH, KC_PAST, KC_BSPC, _______,
+  _______, _______, _______, _______, _______, _______, _______, KC_KP_7, KC_KP_8, KC_KP_9, KC_PMNS, _______,
+  _______, _______, _______, _______, _______, _______, _______, KC_KP_4, KC_KP_5, KC_KP_6, KC_PPLS, _______,
+  _______, _______, _______, _______, _______, _______, _______, KC_KP_1, KC_KP_2, KC_KP_3, KC_PENT, _______,
+  _______, _______, _______, _______, _______,      _______,     _______, KC_KP_0, KC_PDOT, KC_PENT, _______
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  |  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      | Vol+ |      |      |      |      |      |      |      | Play |      |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      | Prev | Vol- | Next |      |      |   ?  |   _  |   +  |      |      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      | Mute |      |      | PgUp |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |RGBmod|      |      |      |      |             |      |   \  | Home | PgDn | End  |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = LAYOUT_preonic_1x2uC (
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL,
+  _______, _______, KC_VOLU, _______, _______, _______, _______, _______, _______, _______, KC_MPLY, _______,
+  _______, KC_MPRV, KC_VOLD, KC_MNXT, _______, _______, KC_QUES, KC_UNDS, KC_PLUS, _______, _______, _______,
+  _______, _______, _______, _______, _______, _______, _______, KC_MUTE, _______, _______, KC_PGUP, _______,
+  _______, _______, _______, _______, _______,     _______,      _______, KC_BSLS, KC_HOME, KC_PGDN, KC_END
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      | [ { (| ) } ]|      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |   |  |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = LAYOUT_preonic_1x2uC (
+  KC_TILD, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  _______,
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, TD_LBRK, TD_RBRK, _______,
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  _______, _______, _______, _______, _______,      _______,     _______, KC_PIPE, _______, _______, _______
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |AudTog|XXXXXX|XXXXXX|XXXXXX|XXXXXX|XXXXXX|XXXXXX|XXXXXX|XXXXXX|XXXXXX| Debug| Reset|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |ClkTog|ClkFq-|ClkFq+|XXXXXX|XXXXXX|XXXXXX|XXXXXX|XXXXXX|XXXXXX|XXXXXX|TermOn|TermOf|
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |MusTog|Voice- Voice+|XXXXXX|XXXXXX|XXXXXX|XXXXXX|XXXXXX|XXXXXX|XXXXXX|AGnorm|AGswap|
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |MidTog|Rplain|Rbreat|Rrainb|Rswirl|Rsnake|Rkridr|Rxmas |Rgrad |RGBtst|XXXXXX|Shift |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |RGBmod|RGBhue|RBGsat|RGBval|      |             |      |XXXXXX|XXXXXX|XXXXXX|XXXXXX|
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] = LAYOUT_preonic_1x2uC (
+  AU_TOG,  XXXXXXX, XXXXXXX, XXXXXXX, RGB_HUI, RGB_HUD, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, DEBUG,   RESET,
+  CK_TOGG, CK_DOWN, CK_UP,   XXXXXXX, RGB_SAI, RGB_SAD, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, TERM_ON, TERM_OFF,
+  MU_TOG,  MUV_DE,  MUV_IN,  XXXXXXX, RGB_VAI, RGB_VAD, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, AG_NORM, AG_SWAP,
+  MI_TOG,  RGB_M_P, RGB_M_B, RGB_M_R,RGB_M_SW,RGB_M_SN, RGB_M_K, RGB_M_X, RGB_M_G, RGB_M_T, RGB_SPI, KC_LSHIFT,
+  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______,      RGB_TOG,     _______, XXXXXXX,RGB_RMOD, RGB_SPD, RGB_MOD
+)
+
+};
+/* clang-format on */
+
+float s_audio_on[][2]    = AUDIO_ON_SONG;
+float s_layer_lower[][2] = LAYER_LOWER_SONG;
+float s_layer_raise[][2] = LAYER_RAISE_SONG;
+
+void audio_on_user() { PLAY_SONG(s_audio_on); };
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+        case LOWER:
+            if (record->event.pressed) {
+                layer_on(_LOWER);
+                update_tri_layer(_LOWER, _RAISE, _ADJUST);
+                PLAY_SONG(s_layer_lower);
+            } else {
+                layer_off(_LOWER);
+                update_tri_layer(_LOWER, _RAISE, _ADJUST);
+            }
+            return false;
+            break;
+        case RAISE:
+            if (record->event.pressed) {
+                layer_on(_RAISE);
+                update_tri_layer(_LOWER, _RAISE, _ADJUST);
+                PLAY_SONG(s_layer_raise);
+            } else {
+                layer_off(_RAISE);
+                update_tri_layer(_LOWER, _RAISE, _ADJUST);
+            }
+            return false;
+            break;
+        case BACKLIT:
+            if (record->event.pressed) {
+                register_code(KC_RSFT);
+#ifdef BACKLIGHT_ENABLE
+                backlight_step();
+#endif
+#ifdef __AVR__
+                writePinLow(E6);
+#endif
+            } else {
+                unregister_code(KC_RSFT);
+#ifdef __AVR__
+                writePinHigh(E6);
+#endif
+            }
+            return false;
+            break;
+    }
+    return true;
+};
+
+/* Global TapDance State */
+static t_tap qk_tap_state = {
+    .left_brackets  = 0,
+    .numpad_funcrow = 0,
+    .right_brackets = 0,
+};
+
+float s_functionrow_on[][2]  = LAYER_FUNCROW_ON_SONG;
+float s_functionrow_off[][2] = LAYER_FUNCROW_OFF_SONG;
+float s_numpad_toggle[][2]   = LAYER_NMPAD_SONG;
+
+t_tap_state get_tapdance_state(qk_tap_dance_state_t *state) {
+    if (state->count == 1) {
+        if (state->interrupted || !state->pressed) {
+            return SINGLE_TAP;
+        } else {
+            return SINGLE_HOLD;
+        }
+    } else if (state->count == 2) {
+        if (state->interrupted || !state->pressed) {
+            return DOUBLE_TAP;
+        } else {
+            return DOUBLE_HOLD;
+        }
+    } else if (state->count == 3) {
+        if (state->interrupted || !state->pressed) {
+            return TRIPLE_TAP;
+        } else {
+            return TRIPLE_HOLD;
+        }
+    } else
+        return TAP_DANCE_NO_MATCH;
+}
+
+void td_numpad_funcrow_finished(qk_tap_dance_state_t *state, void *user_data) {
+    qk_tap_state.numpad_funcrow = get_tapdance_state(state);
+    switch (qk_tap_state.numpad_funcrow) {
+        case SINGLE_TAP ... SINGLE_HOLD:
+            layer_on(_NUMPAD);
+            PLAY_SONG(s_numpad_toggle);
+            break;
+        case DOUBLE_HOLD:
+            layer_on(_FUNCTIONROW);
+            break;
+        case DOUBLE_TAP:
+            if (layer_state_is(_FUNCTIONROW)) {
+                layer_off(_FUNCTIONROW);
+                PLAY_SONG(s_functionrow_off);
+            } else {
+                layer_on(_FUNCTIONROW);
+                PLAY_SONG(s_functionrow_on);
+            }
+            break;
+        default:
+            break;
+    }
+}
+
+void td_numpad_funcrow_reset(qk_tap_dance_state_t *state, void *user_data) {
+    switch (qk_tap_state.numpad_funcrow) {
+        case SINGLE_HOLD:
+            layer_off(_NUMPAD);
+            break;
+        case DOUBLE_HOLD:
+            layer_off(_FUNCTIONROW);
+            break;
+        default:
+            break;
+    }
+}
+
+void td_brackets_left_finished(qk_tap_dance_state_t *state, void *user_data) {
+    qk_tap_state.left_brackets = get_tapdance_state(state);
+    switch (qk_tap_state.left_brackets) {
+        case SINGLE_TAP:
+            register_code16(KC_LEFT_PAREN);
+            break;
+        case DOUBLE_TAP:
+            register_code(KC_LBRACKET);
+            break;
+        case TRIPLE_TAP:
+            register_code16(KC_LEFT_CURLY_BRACE);
+            break;
+        default:
+            break;
+    }
+}
+
+void td_brackets_left_reset(qk_tap_dance_state_t *state, void *user_data) {
+    switch (qk_tap_state.left_brackets) {
+        case SINGLE_TAP:
+            unregister_code16(KC_LEFT_PAREN);
+            break;
+        case DOUBLE_TAP:
+            unregister_code(KC_LBRACKET);
+            break;
+        case TRIPLE_TAP:
+            unregister_code16(KC_LEFT_CURLY_BRACE);
+            break;
+        default:
+            break;
+    }
+    qk_tap_state.left_brackets = 0;
+}
+
+void td_brackets_right_finished(qk_tap_dance_state_t *state, void *user_data) {
+    qk_tap_state.right_brackets = get_tapdance_state(state);
+    switch (qk_tap_state.right_brackets) {
+        case SINGLE_TAP:
+            register_code16(KC_RIGHT_PAREN);
+            break;
+        case DOUBLE_TAP:
+            register_code(KC_RBRACKET);
+            break;
+        case TRIPLE_TAP:
+            register_code16(KC_RIGHT_CURLY_BRACE);
+            break;
+        default:
+            break;
+    }
+}
+
+void td_brackets_right_reset(qk_tap_dance_state_t *state, void *user_data) {
+    switch (qk_tap_state.right_brackets) {
+        case SINGLE_TAP:
+            unregister_code16(KC_RIGHT_PAREN);
+            break;
+        case DOUBLE_TAP:
+            unregister_code(KC_RBRACKET);
+            break;
+        case TRIPLE_TAP:
+            unregister_code16(KC_RIGHT_CURLY_BRACE);
+            break;
+        default:
+            break;
+    }
+    qk_tap_state.right_brackets = 0;
+}
+
+bool     muse_mode      = false;
+uint8_t  last_muse_note = 0;
+uint16_t muse_counter   = 0;
+uint8_t  muse_offset    = 70;
+uint16_t muse_tempo     = 50;
+
+void encoder_update_user(uint8_t index, bool clockwise) {
+    if (muse_mode) {
+        if (IS_LAYER_ON(_RAISE)) {
+            if (clockwise) {
+                muse_offset++;
+            } else {
+                muse_offset--;
+            }
+        } else {
+            if (clockwise) {
+                muse_tempo += 1;
+            } else {
+                muse_tempo -= 1;
+            }
+        }
+    } else {
+        if (clockwise) {
+            tap_code(KC_PGDN);
+        } else {
+            tap_code(KC_PGUP);
+        }
+    }
+}
+
+void dip_switch_update_user(uint8_t index, bool active) {
+    switch (index) {
+        case 0:
+            if (active) {
+                layer_on(_ADJUST);
+            } else {
+                layer_off(_ADJUST);
+            }
+            break;
+        case 1:
+            if (active) {
+                muse_mode = true;
+            } else {
+                muse_mode = false;
+            }
+    }
+}
+
+void matrix_scan_user(void) {
+#ifdef AUDIO_ENABLE
+    if (muse_mode) {
+        if (muse_counter == 0) {
+            uint8_t muse_note = muse_offset + SCALE[muse_clock_pulse()];
+            if (muse_note != last_muse_note) {
+                stop_note(compute_freq_for_midi_note(last_muse_note));
+                play_note(compute_freq_for_midi_note(muse_note), 0xF);
+                last_muse_note = muse_note;
+            }
+        }
+        muse_counter = (muse_counter + 1) % muse_tempo;
+    } else {
+        if (muse_counter) {
+            stop_all_notes();
+            muse_counter = 0;
+        }
+    }
+#endif
+}
+
+bool music_mask_user(uint16_t keycode) {
+    switch (keycode) {
+        case RAISE:
+        case LOWER:
+            return false;
+        default:
+            return true;
+    }
+}
diff --git a/keyboards/preonic/keymaps/mverteuil/readme.md b/keyboards/preonic/keymaps/mverteuil/readme.md
new file mode 100644
index 0000000000..b21df3f8fa
--- /dev/null
+++ b/keyboards/preonic/keymaps/mverteuil/readme.md
@@ -0,0 +1,2 @@
+# mverteuil does olkb preonic
+## 1x2u: One 2u spacebar on bottom row
diff --git a/keyboards/preonic/keymaps/mverteuil/rules.mk b/keyboards/preonic/keymaps/mverteuil/rules.mk
new file mode 100644
index 0000000000..a29a3cad79
--- /dev/null
+++ b/keyboards/preonic/keymaps/mverteuil/rules.mk
@@ -0,0 +1,5 @@
+SRC += muse.c
+
+AUDIO_ENABLE = yes
+MIDI_ENABLE = yes
+TAP_DANCE_ENABLE = yes
diff --git a/keyboards/preonic/keymaps/mverteuil_2x2u/config.h b/keyboards/preonic/keymaps/mverteuil_2x2u/config.h
new file mode 100644
index 0000000000..51b278f647
--- /dev/null
+++ b/keyboards/preonic/keymaps/mverteuil_2x2u/config.h
@@ -0,0 +1,39 @@
+#ifdef AUDIO_ENABLE
+#    if __has_include("copyright.h")
+#        include "copyright.h"
+#    endif
+
+#    define AUDIO_CLICKY_DELAY_DURATION 0
+#    define AUDIO_CLICKY_FREQ_DEFAULT 100.0f
+#    define AUDIO_CLICKY_FREQ_MIN 61.0f
+#    define AUDIO_CLICKY_FREQ_RANDOMNESS 0.2f
+#    define DAC_SAMPLE_MAX 7000U
+#    define STARTUP_SONG SONG(WORKMAN_SOUND)
+#    define GOODBYE_SONG SONG(COIN_SOUND)
+#endif
+
+#define MUSIC_MASK (keycode != KC_NO)
+
+/*
+ * MIDI options
+ */
+
+/* Prevent use of disabled MIDI features in the keymap */
+//#define MIDI_ENABLE_STRICT 1
+
+/* enable basic MIDI features:
+   - MIDI notes can be sent when in Music mode is on
+*/
+
+#define MIDI_BASIC
+
+/* enable advanced MIDI features:
+   - MIDI notes can be added to the keymap
+   - Octave shift and transpose
+   - Virtual sustain, portamento, and modulation wheel
+   - etc.
+*/
+//#define MIDI_ADVANCED
+
+/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
+//#define MIDI_TONE_KEYCODE_OCTAVES 2
diff --git a/keyboards/preonic/keymaps/mverteuil_2x2u/keymap.c b/keyboards/preonic/keymaps/mverteuil_2x2u/keymap.c
new file mode 100644
index 0000000000..232b853114
--- /dev/null
+++ b/keyboards/preonic/keymaps/mverteuil_2x2u/keymap.c
@@ -0,0 +1,413 @@
+/* Copyright 2015-2017 Jack Humbert, 2019 Matthew de Verteuil
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+#include "muse.h"
+#include "mverteuil.h"
+
+/* Layer Aliases */
+#define LT_LWSP LT(_LOWER, KC_SPACE)
+#define LT_RSRT LT(_RAISE, KC_ENTER)
+#define MO_NUMS MO(_NUMPAD)
+
+/* Mod-Tap Aliases */
+#define MT_CESC CTL_T(KC_ESCAPE)
+
+/* TapDance Aliases */
+#define TD_LBRK TD(TD_BRACKETS_LEFT)
+#define TD_RBRK TD(TD_BRACKETS_RIGHT)
+#define TD_PLEQ TD(TD_PLUS_EQUALS)
+#define TD_SCOL TD(TD_SEMICOLON_COLON)
+#define TD_SLQU TD(TD_SLASH_QUESTION)
+#define TD_SQDQ TD(TD_QUOTE_DOUBLEQUOTE)
+#define TD_USMI TD(TD_UNDERSCORE_MINUS)
+
+/* Sentinel value for invalid tap dance exit */
+#define TAP_DANCE_NO_MATCH 64
+
+enum preonic_layers {
+    _QWERTY,
+    _NUMPAD,
+    _LOWER,
+    _RAISE,
+    _ADJUST,
+};
+
+enum preonic_keycodes {
+    QWERTY = SAFE_RANGE,
+    NUMPAD,
+    LOWER,
+    RAISE,
+    BACKLIT,
+};
+
+enum tapdance_keycodes {
+    TD_BRACKETS_LEFT,
+    TD_BRACKETS_RIGHT,
+    TD_CONTROL_ESCAPE,
+    TD_PLUS_EQUALS,
+    TD_QUOTE_DOUBLEQUOTE,
+    TD_SEMICOLON_COLON,
+    TD_SLASH_QUESTION,
+    TD_UNDERSCORE_MINUS,
+};
+
+typedef enum {
+    SINGLE_TAP,
+    SINGLE_HOLD,
+    DOUBLE_TAP,
+    DOUBLE_HOLD,
+    TRIPLE_TAP,
+    TRIPLE_HOLD,
+} t_tap_state;
+
+typedef struct {
+    t_tap_state left_brackets;
+    t_tap_state right_brackets;
+} t_tap;
+
+t_tap_state get_tapdance_state(qk_tap_dance_state_t *state);
+
+void td_brackets_left_finished(qk_tap_dance_state_t *state, void *user_data);
+void td_brackets_left_reset(qk_tap_dance_state_t *state, void *user_data);
+void td_brackets_right_finished(qk_tap_dance_state_t *state, void *user_data);
+void td_brackets_right_reset(qk_tap_dance_state_t *state, void *user_data);
+
+/* Tap Dance Definitions */
+qk_tap_dance_action_t tap_dance_actions[] = {
+    /* Tap once for left parenthesis, twice for left bracket, thrice for left brace */
+    [TD_BRACKETS_LEFT] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, td_brackets_left_finished, td_brackets_left_reset),
+    /* Tap once for right parenthesis, twice for right bracket, thrice for right brace */
+    [TD_BRACKETS_RIGHT] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, td_brackets_right_finished, td_brackets_right_reset),
+    /* Tap once for plus, twice for equals */
+    [TD_PLUS_EQUALS] = ACTION_TAP_DANCE_DOUBLE(KC_PLUS, KC_EQUAL),
+    /* Tap once for single quote, twice for double quote */
+    [TD_QUOTE_DOUBLEQUOTE] = ACTION_TAP_DANCE_DOUBLE(KC_QUOTE, KC_DOUBLE_QUOTE),
+    /* Tap once for semicolon, twice for colon */
+    [TD_SEMICOLON_COLON] = ACTION_TAP_DANCE_DOUBLE(KC_SCOLON, KC_COLON),
+    /* Tap once for slash, twice for question mark */
+    [TD_SLASH_QUESTION] = ACTION_TAP_DANCE_DOUBLE(KC_SLASH, KC_QUESTION),
+    /* Tap once for underscore, twice for minus */
+    [TD_UNDERSCORE_MINUS] = ACTION_TAP_DANCE_DOUBLE(KC_UNDERSCORE, KC_MINUS),
+};
+
+/* clang-format off */
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------.
+ * |   `   |   !   |   @   |   #   |   $   |   %   |   ^   |   &   |   *   |  _ -  |  + =  |  Bksp |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * |  Tab  |   Q   |   W   |   E   |   R   |   T   |   Y   |   U   |   I   |   O   |   P   |  ' "  |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * |CtrlEsc|   A   |   S   |   D   |   F   |   G   |   H   |   J   |   K   |   L   |  ; :  |  / ?  |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * | Shift |   Z   |   X   |   C   |   V   |   B   |   N   |   M   |   ,   |   .   |   ↑   | RShift|
+ * |-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------|
+ * |NumPad | Ctrl  |  Alt  |  GUI  |  Lower/Space  |  Raise/Enter  |  GUI  |   ←   |   ↓   |   →   |
+ * `-----------------------------------------------------------------------------------------------'
+ */
+[_QWERTY] = LAYOUT_preonic_2x2u (
+  KC_GRV,  KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, TD_USMI, TD_PLEQ, KC_BSPC,
+  KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    TD_SQDQ,
+  MT_CESC, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    TD_SCOL, TD_SLQU,
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_UP,   KC_RSFT,
+  MO_NUMS, KC_LCTL, KC_LALT, KC_LGUI,     LT_LWSP,         LT_RSRT,       KC_RGUI, KC_LEFT, KC_DOWN, KC_RGHT
+),
+
+/* Numpad
+ * ,-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------.
+ * |       |       |       |       |       |       |       |  Tab  |   /   |   *   | Bksp  |       |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * |       |       |       |       |       |       |       |   7   |   8   |   9   |   -   |       |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * |       |       |       |       |       |       |       |   4   |   5   |   6   |   +   |       |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * |       |       |       |       |       |       |       |   1   |   2   |   3   | Enter |       |
+ * |-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------|
+ * |       |       |       |       |               |               |   0   |   .   | Enter |       |
+ * `-----------------------------------------------------------------------------------------------'
+ */
+[_NUMPAD] = LAYOUT_preonic_2x2u (
+  _______, _______, _______, _______, _______, _______, _______, KC_TAB,  KC_SLSH, KC_PAST, KC_BSPC, _______,
+  _______, _______, _______, _______, _______, _______, _______, KC_KP_7, KC_KP_8, KC_KP_9, KC_PMNS, _______,
+  _______, _______, _______, _______, _______, _______, _______, KC_KP_4, KC_KP_5, KC_KP_6, KC_PPLS, _______,
+  _______, _______, _______, _______, _______, _______, _______, KC_KP_1, KC_KP_2, KC_KP_3, KC_PENT, _______,
+  _______, _______, _______, _______,      _______,          _______,     KC_KP_0, KC_PDOT, KC_PENT, _______
+),
+
+/* Lower
+ * ,-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------.
+ * |       |   1   |   2   |   3   |   4   |   5   |   6   |   7   |   8   |   9   |   0   |Delete |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * |       |       |  Vol+ |       |       |       |       |       |       |       | MPlay |       |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * |       | MPrev |  Vol- | MNext |       |       |       |       |       |       |       |   \   |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * |       |       |       |       |       |       |       |  Mute |       |       |  PgUp |       |
+ * |-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------|
+ * |       |       |       |       |               |               |       |  Home |  PgDn |  End  |
+ * `-----------------------------------------------------------------------------------------------'
+ */
+[_LOWER] = LAYOUT_preonic_2x2u (
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL,
+  _______, _______, KC_VOLU, _______, _______, _______, _______, _______, _______, _______, KC_MPLY, _______,
+  _______, KC_MPRV, KC_VOLD, KC_MNXT, _______, _______, _______, _______, _______, _______, _______, KC_BSLS,
+  _______, _______, _______, _______, _______, _______, _______, KC_MUTE, _______, _______, KC_PGUP, _______,
+  _______, _______, _______, _______,      _______,         _______,      _______, KC_HOME, KC_PGDN, KC_END
+),
+
+/* Raise
+ * ,-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------.
+ * |       |  F1   |  F2   |  F3   |  F4   |  F5   |  F6   |  F7   |  F8   |  F9   |  F10  |       |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * |       |       |       |       |       |       |       |       |       |       |       |       |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * |       |       |       |       |       |       |       |       | [ { ( | ) } ] |       |   |   |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * |       |       |       |       |       |       |       |       |       |       |       |       |
+ * |-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------|
+ * |       |       |       |       |               |               |       |       |       |       |
+ * `-----------------------------------------------------------------------------------------------'
+ */
+[_RAISE] = LAYOUT_preonic_2x2u (
+  _______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  _______,
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  _______, _______, _______, _______, _______, _______, _______, _______, TD_LBRK, TD_RBRK, _______, KC_PIPE,
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  _______, _______, _______, _______,     _______,           _______,     _______, _______, _______, _______
+),
+
+/* Adjust (Lower + Raise)
+ * ,-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------.
+ * |AudTog |███████|███████|███████|███████|███████|███████|███████|███████|███████| Debug | Reset |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * |Clicky |ClkFrq-|ClkFrq+|███████|███████|███████|███████|███████|███████|███████|TermOn |TermOff|
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * | Music |Voice- |Voice+ |███████|███████|███████|███████|███████|███████|███████|AGnorm |AGswap |
+ * |-------+-------+-------+-------+-------+-------|-------+-------+-------+-------+-------+-------|
+ * | MIDI  |R plain|R breat|R rnbow|R swirl|R snake|R knigt|R xmas |R grade|RGBtest|███████| Shift |
+ * |-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------|
+ * |RGBmode|RGBhue+|RGBsat+|RGBval+|               |               |███████|███████|███████|███████|
+ * `-----------------------------------------------------------------------------------------------'
+ */
+[_ADJUST] = LAYOUT_preonic_2x2u (
+  AU_TOG,  XXXXXXX, XXXXXXX, XXXXXXX, RGB_HUI, RGB_HUD, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, DEBUG,   RESET,
+  CK_TOGG, CK_DOWN, CK_UP,   XXXXXXX, RGB_SAI, RGB_SAD, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, TERM_ON, TERM_OFF,
+  MU_TOG,  MUV_DE,  MUV_IN,  XXXXXXX, RGB_VAI, RGB_VAD, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, AG_NORM, AG_SWAP,
+  MI_TOG,  RGB_M_P, RGB_M_B, RGB_M_R,RGB_M_SW,RGB_M_SN, RGB_M_K, RGB_M_X, RGB_M_G, RGB_M_T, RGB_SPI, KC_LSHIFT,
+  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,     _______,          _______,      XXXXXXX,RGB_RMOD, RGB_SPD, RGB_MOD
+)
+
+};
+/* clang-format on */
+
+float s_audio_on[][2]    = AUDIO_ON_SONG;
+float s_layer_lower[][2] = LAYER_LOWER_SONG;
+float s_layer_raise[][2] = LAYER_RAISE_SONG;
+
+void audio_on_user() { PLAY_SONG(s_audio_on); };
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+        case LOWER:
+            if (record->event.pressed) {
+                layer_on(_LOWER);
+                update_tri_layer(_LOWER, _RAISE, _ADJUST);
+                PLAY_SONG(s_layer_lower);
+            } else {
+                layer_off(_LOWER);
+                update_tri_layer(_LOWER, _RAISE, _ADJUST);
+            }
+            return false;
+            break;
+        case RAISE:
+            if (record->event.pressed) {
+                layer_on(_RAISE);
+                update_tri_layer(_LOWER, _RAISE, _ADJUST);
+                PLAY_SONG(s_layer_raise);
+            } else {
+                layer_off(_RAISE);
+                update_tri_layer(_LOWER, _RAISE, _ADJUST);
+            }
+            return false;
+            break;
+        case BACKLIT:
+            if (record->event.pressed) {
+                register_code(KC_RSFT);
+#ifdef BACKLIGHT_ENABLE
+                backlight_step();
+#endif
+#ifdef __AVR__
+                writePinLow(E6);
+#endif
+            } else {
+                unregister_code(KC_RSFT);
+#ifdef __AVR__
+                writePinHigh(E6);
+#endif
+            }
+            return false;
+            break;
+    }
+    return true;
+};
+
+/* Global TapDance State */
+static t_tap qk_tap_state = {
+    .left_brackets  = 0,
+    .right_brackets = 0,
+};
+
+float s_numpad_toggle[][2] = LAYER_NMPAD_SONG;
+
+t_tap_state get_tapdance_state(qk_tap_dance_state_t *state) {
+    if (state->count == 1) {
+        if (state->interrupted || !state->pressed) {
+            return SINGLE_TAP;
+        } else {
+            return SINGLE_HOLD;
+        }
+    } else if (state->count == 2) {
+        if (state->interrupted || !state->pressed) {
+            return DOUBLE_TAP;
+        } else {
+            return DOUBLE_HOLD;
+        }
+    } else if (state->count == 3) {
+        if (state->interrupted || !state->pressed) {
+            return TRIPLE_TAP;
+        } else {
+            return TRIPLE_HOLD;
+        }
+    } else
+        return TAP_DANCE_NO_MATCH;
+}
+
+void td_brackets_left_finished(qk_tap_dance_state_t *state, void *user_data) {
+    qk_tap_state.left_brackets = get_tapdance_state(state);
+    switch (qk_tap_state.left_brackets) {
+        case SINGLE_TAP:
+            register_code16(KC_LEFT_PAREN);
+            break;
+        case DOUBLE_TAP:
+            register_code(KC_LBRACKET);
+            break;
+        case TRIPLE_TAP:
+            register_code16(KC_LEFT_CURLY_BRACE);
+            break;
+        default:
+            break;
+    }
+}
+
+void td_brackets_left_reset(qk_tap_dance_state_t *state, void *user_data) {
+    switch (qk_tap_state.left_brackets) {
+        case SINGLE_TAP:
+            unregister_code16(KC_LEFT_PAREN);
+            break;
+        case DOUBLE_TAP:
+            unregister_code(KC_LBRACKET);
+            break;
+        case TRIPLE_TAP:
+            unregister_code16(KC_LEFT_CURLY_BRACE);
+            break;
+        default:
+            break;
+    }
+    qk_tap_state.left_brackets = 0;
+}
+
+void td_brackets_right_finished(qk_tap_dance_state_t *state, void *user_data) {
+    qk_tap_state.right_brackets = get_tapdance_state(state);
+    switch (qk_tap_state.right_brackets) {
+        case SINGLE_TAP:
+            register_code16(KC_RIGHT_PAREN);
+            break;
+        case DOUBLE_TAP:
+            register_code(KC_RBRACKET);
+            break;
+        case TRIPLE_TAP:
+            register_code16(KC_RIGHT_CURLY_BRACE);
+            break;
+        default:
+            break;
+    }
+}
+
+void td_brackets_right_reset(qk_tap_dance_state_t *state, void *user_data) {
+    switch (qk_tap_state.right_brackets) {
+        case SINGLE_TAP:
+            unregister_code16(KC_RIGHT_PAREN);
+            break;
+        case DOUBLE_TAP:
+            unregister_code(KC_RBRACKET);
+            break;
+        case TRIPLE_TAP:
+            unregister_code16(KC_RIGHT_CURLY_BRACE);
+            break;
+        default:
+            break;
+    }
+    qk_tap_state.right_brackets = 0;
+}
+
+bool     muse_mode      = false;
+uint8_t  last_muse_note = 0;
+uint16_t muse_counter   = 0;
+uint8_t  muse_offset    = 70;
+uint16_t muse_tempo     = 50;
+
+void encoder_update_user(uint8_t index, bool clockwise) {
+    if (muse_mode) {
+        if (IS_LAYER_ON(_RAISE)) {
+            if (clockwise) {
+                muse_offset++;
+            } else {
+                muse_offset--;
+            }
+        } else {
+            if (clockwise) {
+                muse_tempo += 1;
+            } else {
+                muse_tempo -= 1;
+            }
+        }
+    } else {
+        if (clockwise) {
+            tap_code(KC_PGDN);
+        } else {
+            tap_code(KC_PGUP);
+        }
+    }
+}
+
+void dip_switch_update_user(uint8_t index, bool active) {
+    switch (index) {
+        case 0:
+            if (active) {
+                layer_on(_ADJUST);
+            } else {
+                layer_off(_ADJUST);
+            }
+            break;
+        case 1:
+            if (active) {
+                muse_mode = true;
+            } else {
+                muse_mode = false;
+            }
+    }
+}
diff --git a/keyboards/preonic/keymaps/mverteuil_2x2u/rules.mk b/keyboards/preonic/keymaps/mverteuil_2x2u/rules.mk
new file mode 100644
index 0000000000..9e55d0aa67
--- /dev/null
+++ b/keyboards/preonic/keymaps/mverteuil_2x2u/rules.mk
@@ -0,0 +1,6 @@
+USER_NAME := mverteuil
+SRC += muse.c
+
+AUDIO_ENABLE = yes
+MIDI_ENABLE = yes
+TAP_DANCE_ENABLE = yes