Mozaic MIDI Interception

Mozaic MIDI Interception.txt

MIDI Reception and Intervention
	•	MIDI Input Handling:
	•	Mozaic triggers the @OnMidiInput event when any MIDI data is received.
	•	Note: Incoming MIDI is not automatically forwarded to the output—you must explicitly forward it using commands like SendMIDIThru or SendMIDIThruOnCh <channel>.
	•	Forwarding MIDI Data:
	•	Use SendMIDIThru to pass all incoming MIDI data unchanged.
	•	Use SendMIDIThruOnCh <channel> to reassign all incoming MIDI to a specific channel (e.g., SendMIDIThruOnCh 9 routes everything to channel 9).
	•	Filtering MIDI Events:
	•	The variable MIDICommand holds the last received MIDI command (e.g., Note On 0x90, Note Off 0x80, CC 0xB0).
	•	Mozaic supports both hexadecimal (e.g., 0xB0) and decimal (e.g., 176) notation.
	•	Gotcha: To filter out specific MIDI events (like MIDI CC), check the value of MIDICommand within your @OnMidiInput block:

@OnMidiInput
    if MIDICommand = 0xB0
        // Handle or filter out CC events as needed.
    else
        // Forward non-CC events.
    endif
    SendMIDIThruOnCh 9
@End


	•	Channel Handling: Within @OnMidiInput, the channel number in MIDICommand is set to 0. Use the variable MIDIChannel to retrieve the original channel if needed.
	
All channels coming into Mozaic are 0 based, so you often need to subtract one from the hardware devices human readable track number.
	
When working with the OP-XY, it's MIDI controller channel works across MIDI channel 0. It will send notes and MIDI CC, bank and program in on channel 0.