qmk_firmware/keyboards/preonic/keymaps/brauner/keymap.c

/* Copyright 2015-2021 Jack Humbert
 *
 * 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"

enum preonic_layers {
    _QWERTY,
    _LOWER,
    _RAISE,
    _MOUSE,
    _MANAGE,
    _COMPOSITOR,
};

enum preonic_keycodes {
    QWERTY = SAFE_RANGE,
    LOWER,
    RAISE,
    MOUSE,
    MANAGE,
    COMPOSITOR,
};

#define MOD_TAP_LSFT_ESC LSFT_T(KC_ESC)
#define MOD_TAP_LSFT_ENT LSFT_T(KC_ENT)

#define LT_COPY_Y    LT(_QWERTY, KC_Y)
#define LT_CUT_X     LT(_QWERTY, KC_X)
#define LT_PASTE_P   LT(_QWERTY, KC_P)
#define LT_AE_A      LT(_QWERTY, KC_A)
#define LT_OE_O      LT(_QWERTY, KC_O)
#define LT_UE_U      LT(_QWERTY, KC_U)
#define LT_SZ_S      LT(_QWERTY, KC_S)
#define LT_LOWER_SPC LT(_LOWER,  KC_SPC)

#define LM_COMP_LALT      LM(_COMPOSITOR, MOD_LALT)

#define KO_LAYER_MASK_EXCEPT(layer) ((~0) & ~(1 << layer))

enum combos {
    COMBO_LPRN_RPRN, /* (|) */
    COMBO_LBRC_RBRC, /* [|] */
    COMBO_LCBR_RCBR, /* {|} */
    COMBO_LT_GT,     /* <|> */
    COMBO_MAX,
};

uint16_t COMBO_LEN = COMBO_MAX;

const uint16_t PROGMEM combo_lprn_rprn[] = {KC_LPRN, KC_RPRN, COMBO_END};
const uint16_t PROGMEM combo_lbrc_rbrc[] = {KC_LBRC, KC_RBRC, COMBO_END};
const uint16_t PROGMEM combo_lcbr_rcbr[] = {KC_LCBR, KC_RCBR, COMBO_END};
const uint16_t PROGMEM combo_lt_gt[]     = {KC_LT, KC_GT, COMBO_END};

combo_t key_combos[COMBO_MAX] = {
    [COMBO_LPRN_RPRN] = COMBO_ACTION(combo_lprn_rprn),
    [COMBO_LBRC_RBRC] = COMBO_ACTION(combo_lbrc_rbrc),
    [COMBO_LCBR_RCBR] = COMBO_ACTION(combo_lcbr_rcbr),
    [COMBO_LT_GT]     = COMBO_ACTION(combo_lt_gt),
};

void process_combo_event(uint16_t combo_index, bool pressed) {
    switch (combo_index) {
        case COMBO_LPRN_RPRN:
            if (pressed) {
                tap_code16(KC_LPRN);
                tap_code16(KC_RPRN);
                tap_code16(KC_LEFT);
            }
            break;
        case COMBO_LBRC_RBRC:
            if (pressed) {
                tap_code16(KC_LBRC);
                tap_code16(KC_RBRC);
                tap_code16(KC_LEFT);
            }
            break;
        case COMBO_LCBR_RCBR:
            if (pressed) {
                tap_code16(KC_LCBR);
                tap_code16(KC_RCBR);
                tap_code16(KC_LEFT);
            }
            break;
        case COMBO_LT_GT:
            if (pressed) {
                tap_code16(KC_LT);
                tap_code16(KC_GT);
                tap_code16(KC_LEFT);
            }
            break;
    }
}

const key_override_t nop_shift_quote = ko_make_with_layers(MOD_MASK_SHIFT, KC_QUOT, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR)); /* " */
const key_override_t nop_shift_dot   = ko_make_with_layers(MOD_MASK_SHIFT, KC_DOT, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR));  /* < */
const key_override_t nop_shift_comma = ko_make_with_layers(MOD_MASK_SHIFT, KC_COMM, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR)); /* > */
const key_override_t nop_shift_slash = ko_make_with_layers(MOD_MASK_SHIFT, KC_SLSH, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR)); /* ? */
const key_override_t nop_shift_one   = ko_make_with_layers(MOD_MASK_SHIFT, KC_1, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR));    /* ! */
const key_override_t nop_shift_two   = ko_make_with_layers(MOD_MASK_SHIFT, KC_2, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR));    /* override @ */
const key_override_t nop_shift_three = ko_make_with_layers(MOD_MASK_SHIFT, KC_3, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR));    /* override # */
const key_override_t nop_shift_four  = ko_make_with_layers(MOD_MASK_SHIFT, KC_4, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR));    /* override $ */
const key_override_t nop_shift_five  = ko_make_with_layers(MOD_MASK_SHIFT, KC_5, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR));    /* override % */
const key_override_t nop_shift_six   = ko_make_with_layers(MOD_MASK_SHIFT, KC_6, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR));    /* override ^ */
const key_override_t nop_shift_seven = ko_make_with_layers(MOD_MASK_SHIFT, KC_7, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR));    /* override & */
const key_override_t nop_shift_eight = ko_make_with_layers(MOD_MASK_SHIFT, KC_8, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR));    /* override * */
const key_override_t nop_shift_nine  = ko_make_with_layers(MOD_MASK_SHIFT, KC_9, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR));    /* override ( */
const key_override_t nop_shift_zero  = ko_make_with_layers(MOD_MASK_SHIFT, KC_0, KC_NO, KO_LAYER_MASK_EXCEPT(_COMPOSITOR));    /* override ) */

const key_override_t **key_overrides = (const key_override_t *[]){
    &nop_shift_quote,
    &nop_shift_dot,
    &nop_shift_comma,
    &nop_shift_slash,
    &nop_shift_one,
    &nop_shift_two,
    &nop_shift_three,
    &nop_shift_four,
    &nop_shift_five,
    &nop_shift_six,
    &nop_shift_seven,
    &nop_shift_eight,
    &nop_shift_nine,
    &nop_shift_zero,
    NULL
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* Qwerty
     * ,----------------------------------------------------------------------------------------------------------.
     * | Caps Lock    |   1   |  2   |  3   |  4   |  5   |     6     |  7   |  8   |   9  |  0    | Leader       |
     * |--------------+-------+------+------+------+------+-----------+------+------+------+-------+--------------|
     * | Ctrl         |   Q   |  W   |  E   |  R   |  T   |   Y/Copy  | U/Ü  |  I   | O/Ö  |P/Paste| Ctrl         |
     * |--------------+-------+------+------+------+------+-----------+------+------+------+-------+--------------|
     * | Shift/Esc    |  A/Ä  | S/ß  |  D   |  F   |  G   |     H     |  J   |  K   |   L  |  '    | Shift/Enter  |
     * |--------------+-------+------+------+------+------+-----------+------+------+------+-------+--------------|
     * | Alt          |   Z   |X/Cut |  C   |  V   |  B   |     N     |  M   |  ,   |   .  |  /    | Alt          |
     * |--------------+-------+------+------+------+------+-----------+------+------+------+-------+--------------|
     * | Mouse        |       |      |      |Raise |Lower |Lower/Space|Raise |      |      |       | Manage       |
     * `----------------------------------------------------------------------------------------------------------'
     */
    [_QWERTY] = LAYOUT_preonic_grid(
      KC_CAPS,          KC_1,    KC_2,     KC_3,    KC_4,   KC_5,  KC_6,         KC_7,    KC_8,    KC_9,     KC_0,       QK_LEAD,
      KC_LCTL,          KC_Q,    KC_W,     KC_E,    KC_R,   KC_T,  LT_COPY_Y,    LT_UE_U, KC_I,    LT_OE_O,  LT_PASTE_P, KC_RCTL,
      MOD_TAP_LSFT_ESC, LT_AE_A, LT_SZ_S,  KC_D,    KC_F,   KC_G,  KC_H,         KC_J,    KC_K,    KC_L,     KC_QUOT,    MOD_TAP_LSFT_ENT,
      LM_COMP_LALT,     KC_Z,    LT_CUT_X, KC_C,    KC_V,   KC_B,  KC_N,         KC_M,    KC_COMM, KC_DOT,   KC_SLSH,    LM_COMP_LALT,
      TG(_MOUSE),       _______, _______,  _______, RAISE,  LOWER, LT_LOWER_SPC, RAISE,   _______,  _______, _______,    MANAGE
    ),
    /* Lower
     * ,-----------------------------------------------------------------------------------.
     * |      |      |      |      |      |      |      |      |      |      |      |      |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |      |  @   |  %   |  (   |   )  |      |      |  +   |  <   |  >   |      |      |
     * |------+------+------+------+------+-------------+------+------+------+------+------|
     * |      |  ~   |      |  [   |   ]  |      | Left | Down |  Up  |Right |  "   |      |
     * |------+------+------+------+------+------|------+------+------+------+------+------|
     * |      |      |      |  {   |   }  |      |      |      |  :   |   !  |  \   |      |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |      |      |      |      |      |      |      |      |      |      |      |      |
     * `-----------------------------------------------------------------------------------'
     */
    [_LOWER] = LAYOUT_preonic_grid(
      XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
      XXXXXXX, KC_AT,   KC_PERC, KC_LPRN, KC_RPRN, XXXXXXX, XXXXXXX, KC_PLUS, KC_LT,   KC_GT,   XXXXXXX, XXXXXXX,
      XXXXXXX, KC_TILD, XXXXXXX, KC_LBRC, KC_RBRC, XXXXXXX, KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, KC_DQUO, XXXXXXX,
      XXXXXXX, XXXXXXX, XXXXXXX, KC_LCBR, KC_RCBR, XXXXXXX, XXXXXXX, XXXXXXX, KC_COLN, KC_EXLM, KC_BSLS, XXXXXXX,
      XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
    ),
    /* Raise
     * ,-----------------------------------------------------------------------------------.
     * |      |      |      |      |      |      |      |      |      |      |      |      |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |      |  #   |  &   |      |      |      |      |   *  |  -   |  _   |  =   |      |
     * |------+------+------+------+------+-------------+------+------+------+------+------|
     * |      |  `   |      |      |      |      | Bspk |Pg Dn |Pg Up | Tab  |  $   | End  |
     * |------+------+------+------+------+------|------+------+------+------+------+------|
     * |      |      |      |      |      |      |      |      |  ;   |  ?   |  |   |      |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |      |      |      |      |      |      |      |      |      |      |      |      |
     * `-----------------------------------------------------------------------------------'
     */
    [_RAISE] = LAYOUT_preonic_grid(
      XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
      XXXXXXX, KC_HASH, KC_AMPR, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_ASTR, KC_MINS, KC_UNDS, KC_EQL,  XXXXXXX,
      XXXXXXX, KC_GRV,  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_BSPC, KC_PGDN, KC_PGUP, KC_TAB,  KC_DLR,  KC_END,
      XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_SCLN, KC_QUES, KC_PIPE, XXXXXXX,
      XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
    ),
    /* Mouse
     * ,-------------------------------------------------------------------------------------------------------------------------------------------------------.
     * |              |       |              |              |              |              |           |           |         |            |      |              |
     * |--------------+-------+--------------+--------------+--------------+--------------+-----------+-----------+---------+------------+------+--------------|
     * |              |       |              |              |              |              |Wheel Left |Wheel Down |Wheel Up |Wheel Right |      | Ctrl         |
     * |--------------+-------+--------------+--------------+--------------+--------------+-----------+-----------+---------+------------+------+--------------|
     * |              |       | Button 3     | Button 2     | Button 1     |              |Cursor Left|Cursor Down|Cursor Up|Cursor Right|      |              |
     * |--------------+-------+--------------+--------------+--------------+--------------+-----------+-----------+---------+------------+------+--------------|
     * |Compositor+Alt|       |              |              |              |              |           |           |         |            |      |Compositor+Alt|
     * |--------------+-------+--------------+--------------+--------------+--------------+-----------+-----------+---------+------------+------+--------------|
     * |Mouse         |       |              |Accelaration 2|Accelaration 1|Accelaration 0|           |           |         |            |      |              |
     * `-------------------------------------------------------------------------------------------------------------------------------------------------------'
     */
    [_MOUSE] = LAYOUT_preonic_grid(
      XXXXXXX, XXXXXXX, XXXXXXX,    XXXXXXX,      XXXXXXX,      XXXXXXX,      XXXXXXX,       XXXXXXX,       XXXXXXX,     XXXXXXX,        XXXXXXX, XXXXXXX,
      XXXXXXX, XXXXXXX, XXXXXXX,    XXXXXXX,      XXXXXXX,      XXXXXXX,      KC_MS_WH_LEFT, KC_MS_WH_DOWN, KC_MS_WH_UP, KC_MS_WH_RIGHT, XXXXXXX, _______,
      XXXXXXX, XXXXXXX, KC_MS_BTN3, KC_MS_BTN2,   KC_MS_BTN1,   XXXXXXX,      KC_MS_LEFT,    KC_MS_DOWN,    KC_MS_UP,    KC_MS_RIGHT,    XXXXXXX, XXXXXXX,
      _______, XXXXXXX, XXXXXXX,    XXXXXXX,      XXXXXXX,      XXXXXXX,      XXXXXXX,       XXXXXXX,       XXXXXXX,     XXXXXXX,        XXXXXXX, _______,
      _______, XXXXXXX, XXXXXXX,    KC_MS_ACCEL2, KC_MS_ACCEL1, KC_MS_ACCEL0, XXXXXXX,       XXXXXXX,       XXXXXXX,     XXXXXXX,        XXXXXXX, XXXXXXX
    ),
    /* Manage
     * ,---------------------------------------------------------------------------------------.
     * |  F1  |   F2   |   F3   |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |
     * |------+--------+--------+------+------+------+------+------+------+------+------+------|
     * |      |        |        |      |      |      |      |      |      |      |      |      |
     * |------+--------+--------+------+------+-------------+------+------+------+------+------|
     * |      |Aud prev|Aud next|Aud on|AudOff|      |      |Qwerty|      |      |      |      |
     * |------+--------+--------+------+------+------|------+------+------+------+------+------|
     * |      |        |Mus next|Mus on|MusOff|      |      |      |      |      |      |      |
     * |------+--------+--------+------+------+------+------+------+------+------+------+------|
     * |Reset |        |        |      |      |      |      |      |      |      |      |      |
     * `---------------------------------------------------------------------------------------'
     */
    [_MANAGE] = LAYOUT_preonic_grid(
      KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,
      XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
      XXXXXXX, AU_PREV, AU_NEXT, AU_ON,   AU_OFF,  XXXXXXX, XXXXXXX, QWERTY,  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
      XXXXXXX, XXXXXXX, MU_NEXT, MU_ON,   MU_OFF,  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
      QK_BOOT, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
    ),
    /* Compositor
     * ,-----------------------------------------------------------------------------------.
     * |      |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  |      |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |      |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  |      |
     * |------+------+------+------+------+-------------+------+------+------+------+------|
     * |Shift |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   '  |Enter |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |      |   Z  |   X  |   C  |  V   |   B  |   N  |   M  |   ,  |   .  |   /  |      |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |      |      |      |      |      |      |Space |      |      |      |      |      |
     * `-----------------------------------------------------------------------------------'
     */
    [_COMPOSITOR] = LAYOUT_preonic_grid(
      XXXXXXX,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    XXXXXXX,
      XXXXXXX,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    XXXXXXX,
      _______,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_QUOT, _______,
      XXXXXXX,  KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, XXXXXXX,
      XXXXXXX,  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_SPC,  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
    )
};

static inline bool base_layer_hold_key(uint16_t keycode, keyrecord_t *record) {
    if (!record->tap.count && record->event.pressed) {
        tap_code16(keycode);
        return false;
    }
    return true;
}

static inline bool toggle_layer(enum preonic_layers layer, keyrecord_t *record) {
    if (record->event.pressed) {
        layer_on(layer);
    } else {
        layer_off(layer);
    }
    return false;
}

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
    switch (keycode) {
        case QWERTY:
            if (record->event.pressed) {
                set_single_persistent_default_layer(_QWERTY);
            }
            return false;
        case LOWER:
	    return toggle_layer(_LOWER, record);
        case RAISE:
	    return toggle_layer(_RAISE, record);
        case MANAGE:
	    return toggle_layer(_MANAGE, record);
        case COMPOSITOR:
	    return toggle_layer(_COMPOSITOR, record);
        case LT_CUT_X:
	    return base_layer_hold_key(C(KC_X), record); /* cut on hold */
        case LT_COPY_Y:
	    return base_layer_hold_key(C(KC_C), record); /* copy on hold */
        case LT_PASTE_P:
	    return base_layer_hold_key(C(KC_V), record); /* paste on hold */
        case LT_AE_A:
	    return base_layer_hold_key(RALT(KC_Q), record); /* 'ä' on hold */
        case LT_OE_O:
	    return base_layer_hold_key(RALT(KC_P), record); /* 'ö' on hold */
        case LT_UE_U:
	    return base_layer_hold_key(RALT(KC_Y), record); /* 'ü' on hold */
        case LT_SZ_S:
	    return base_layer_hold_key(RALT(KC_S), record); /* 'ß' on hold */
    }

    return true;
};

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;

bool 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);
        }
    }
    return true;
}

bool dip_switch_update_user(uint8_t index, bool active) {
    switch (index) {
        case 0:
            if (active) {
                layer_on(_MANAGE);
            } else {
                layer_off(_MANAGE);
            }
            break;
        case 1:
            if (active) {
                muse_mode = true;
            } else {
                muse_mode = false;
            }
    }
    return true;
}

static inline void register_ctrl_sequence(uint16_t keycode) {
    tap_code16(RCTL(keycode));
}

void leader_end_user(void) {
    if (leader_sequence_three_keys(KC_A, KC_C, KC_K)) {
        SEND_STRING("Acked-by: Christian Brauner <brauner@kernel.org>");
    }

    if (leader_sequence_three_keys(KC_R, KC_V, KC_B)) {
        SEND_STRING("Reviewed-by: Christian Brauner <brauner@kernel.org>");
    }

    if (leader_sequence_three_keys(KC_S, KC_O, KC_B)) {
        SEND_STRING("Signed-off-by: Christian Brauner <brauner@kernel.org>");
    }

    /* Support vim-style copy. */
    if (leader_sequence_one_key(KC_Y)) {
        tap_code16(C(S(KC_C)));
    }

    /* Support vim-style paste. */
    if (leader_sequence_one_key(KC_P)) {
        tap_code16(C(S(KC_V)));
    }
}

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;
    }
}