public void AddNote(int track, int start, int length, byte key, DynamicValue dynamicValue, byte channel) { var velocity = MidiUtils.DynamicToVelocity(dynamicValue); AddEvent(track, start, new MidiMessage(new[] { MakeCommand(0x90, channel), FixValue(key), FixValue((byte)velocity) })); AddEvent(track, start + length, new MidiMessage(new[] { MakeCommand(0x80, channel), FixValue(key), FixValue((byte)velocity) })); }