void matrix_scan_music(void);
+bool music_mask(uint16_t keycode);
+bool music_mask_kb(uint16_t keycode);
+bool music_mask_user(uint16_t keycode);
+
#ifndef SCALE
#define SCALE (int8_t []){ 0 + (12*0), 2 + (12*0), 4 + (12*0), 5 + (12*0), 7 + (12*0), 9 + (12*0), 11 + (12*0), \
0 + (12*1), 2 + (12*1), 4 + (12*1), 5 + (12*1), 7 + (12*1), 9 + (12*1), 11 + (12*1), \