qmk-dactyl-manuform-a/keyboards/40percentclub/gherkin/keymaps/midi/keymap.c

#include QMK_KEYBOARD_H

enum layer_number {
  _IONIAN = 0,
  _DORIAN,
  _PHRYGIAN,
  _LYDIAN,
  _MIXOLYDIAN,
  _AEOLIAN,
  _LOCRIAN,
  _MENU
};

enum custom_keycodes {
  IONIAN = SAFE_RANGE,
  DORIAN,
  PHRYGIAN,
  LYDIAN,
  MIXOLYDIAN,
  AEOLIAN,
  LOCRIAN,
};

#define MENU MO(_MENU)

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  [_IONIAN] = LAYOUT_ortho_3x10(
    MI_C_1,  MI_F_1,  MI_B_1,  MI_E_2,  MI_A_2,  MI_D_3,  MI_G_3,  MI_C_4,  MI_OCTD,  MI_OCTU,
    MI_D_1,  MI_G_1,  MI_C_2,  MI_F_2,  MI_B_2,  MI_E_3,  MI_A_3,  MI_D_4,  MI_TRNSD, MI_TRNSU,
    MI_E_1,  MI_A_1,  MI_D_2,  MI_G_2,  MI_C_3,  MI_F_3,  MI_B_3,  MI_E_4,  MI_SUS, MENU
  ),

  [_DORIAN] = LAYOUT_ortho_3x10(
    MI_C_1,  MI_F_1,  MI_As_1, MI_Ds_2, MI_A_2,  MI_D_3,  MI_G_3,  MI_C_4,  _______, _______,
    MI_D_1,  MI_G_1,  MI_C_2,  MI_F_2,  MI_As_2, MI_Ds_3, MI_A_3,  MI_D_4,  _______, _______,
    MI_Ds_1, MI_A_1,  MI_D_2,  MI_G_2,  MI_C_3,  MI_F_3,  MI_As_3, MI_Ds_4, _______, _______
  ),

  [_PHRYGIAN] = LAYOUT_ortho_3x10(
    MI_C_1,  MI_F_1,  MI_As_1, MI_Ds_2, MI_Gs_2, MI_Cs_3, MI_G_3,  MI_C_4,  _______, _______,
    MI_Cs_1, MI_G_1,  MI_C_2,  MI_F_2,  MI_As_2, MI_Ds_3, MI_Gs_3, MI_Cs_4, _______, _______,
    MI_Ds_1, MI_Gs_1, MI_Cs_2, MI_G_2,  MI_C_3,  MI_F_3,  MI_As_3, MI_Ds_4, _______, _______
  ),

  [_LYDIAN] = LAYOUT_ortho_3x10(
    MI_C_1,  MI_Fs_1, MI_B_1,  MI_E_2,  MI_A_2,  MI_D_3,  MI_G_3,  MI_C_4,  _______, _______,
    MI_D_1,  MI_G_1,  MI_C_2,  MI_Fs_2, MI_B_2,  MI_E_3,  MI_A_3,  MI_D_4,  _______, _______,
    MI_E_1,  MI_A_1,  MI_D_2,  MI_G_2,  MI_C_3,  MI_Fs_3, MI_B_3,  MI_E_4,  _______, _______
  ),

  [_MIXOLYDIAN] = LAYOUT_ortho_3x10(
    MI_C_1,  MI_F_1,  MI_As_1, MI_E_2,  MI_A_2,  MI_D_3,  MI_G_3,  MI_C_4,  _______, _______,
    MI_D_1,  MI_G_1,  MI_C_2,  MI_F_2,  MI_As_2, MI_E_3,  MI_A_3,  MI_D_4,  _______, _______,
    MI_E_1,  MI_A_1,  MI_D_2,  MI_G_2,  MI_C_3,  MI_F_3,  MI_As_3, MI_E_4,  _______, _______
  ),

  [_AEOLIAN] = LAYOUT_ortho_3x10(
    MI_C_1,  MI_F_1,  MI_As_1, MI_Ds_2, MI_Gs_2, MI_D_3,  MI_G_3,  MI_C_4,  _______, _______,
    MI_D_1,  MI_G_1,  MI_C_2,  MI_F_2,  MI_As_2, MI_Ds_3, MI_Gs_3, MI_D_4,  _______, _______,
    MI_Ds_1, MI_Gs_1, MI_D_2,  MI_G_2,  MI_C_3,  MI_F_3,  MI_As_3, MI_Ds_4, _______, _______
  ),

  [_LOCRIAN] = LAYOUT_ortho_3x10(
    MI_C_1,  MI_F_1,  MI_As_1, MI_Ds_2, MI_Gs_2, MI_Cs_3, MI_Fs_3, MI_C_4,  _______, _______,
    MI_Cs_1, MI_Fs_1, MI_C_2,  MI_F_2,  MI_As_2, MI_Ds_3, MI_Gs_3, MI_Cs_4, _______, _______,
    MI_Ds_1, MI_Gs_1, MI_Cs_2, MI_Fs_2, MI_C_3,  MI_F_3,  MI_As_3, MI_Ds_4, _______, _______
  ),

  [_MENU] = LAYOUT_ortho_3x10(
    IONIAN,   LYDIAN,     LOCRIAN, _______, _______, _______, _______, _______, _______, _______,
    DORIAN,   MIXOLYDIAN, _______, _______, _______, _______, _______, _______, _______, _______,
    PHRYGIAN, AEOLIAN,    _______, _______, _______, _______, _______, _______, RESET,   _______
  )
};

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  switch (keycode) {
    case IONIAN:
      if (record->event.pressed) {
        set_single_persistent_default_layer(_IONIAN);
      }
      break;
    case DORIAN:
      if (record->event.pressed) {
        set_single_persistent_default_layer(_DORIAN);
      }
      break;
    case PHRYGIAN:
      if (record->event.pressed) {
        set_single_persistent_default_layer(_PHRYGIAN);
      }
      break;
    case LYDIAN:
      if (record->event.pressed) {
        set_single_persistent_default_layer(_LYDIAN);
      }
      break;
    case MIXOLYDIAN:
      if (record->event.pressed) {
        set_single_persistent_default_layer(_MIXOLYDIAN);
      }
      break;
    case AEOLIAN:
      if (record->event.pressed) {
        set_single_persistent_default_layer(_AEOLIAN);
      }
      break;
    case LOCRIAN:
      if (record->event.pressed) {
        set_single_persistent_default_layer(_LOCRIAN);
      }
      break;
  }
  return true;
}