Initial commit

preprocess/tools/midi_editor/src/constants.ts

@@ -0,0 +1,8 @@
+// Base values used for scaling; actual runtime values are derived in components
+export const BASE_GRID_SECOND_WIDTH = 80
+export const BASE_ROW_HEIGHT = 20
+export const PITCH_WIDTH = 60
+// C-1 to C8 range (MIDI note numbers)
+// LOW_NOTE = 0 to support SP markers (pitch=0) in some MIDI files
+export const LOW_NOTE = 0   // C-1 (also supports pitch=0 for SP markers)
+export const HIGH_NOTE = 108 // C8