Ultimate MIDI Customizer

One download (.mid) that can contain many instruments, many channels, chords, drums, and layered parts.

BPM Length (beats)

Tip: Channel 10 (drums) ignores instrument programs. Everything else uses GM programs (0–127).

Channel Instrument (GM program) Note Start (beats) Duration (beats) Velocity (1–127)

#	Channel	Program	Note	Start	Dur	Vel	Actions