Generic

Generic MIDI module for Companion

Please visit https://discourse.checkcheckonetwo.com for help, discussions, suggestions, etc.

Andrew Broughton 2026

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This module supports the following MIDI message types:

• Note On
• Note Off
• Control Change (CC)
• Program Change (PC)
• Aftertouch
• Pitch Wheel
• Channel Pressure
• Sysex
• MIDI Time Code (receive only)

Features:

• MacOS, Windows, Linux Support
• MIDI over LAN via rtpMIDI (Network-MIDI on MacOS)
• Using incoming Midi Timestamp with Action Recorder
• noteStates is kept as an array of booleans laid out as [channel][note #] e.g. when a noteon message arrives on channel 1, for note 60 then $(generic-midi:noteStates)[1][60] == true. If noteoff (or noteon with velocity = 0) arrives on channel 3, note 50, then $(generic-midi:noteStates)[3][50] == false.

To Do:

• Long Sysex message support
• Filtering of Real-Time messages
• MSC support?
• Virtual Ports under Windows?

Thanks to Julian Waller for rewriting node-midi to TS and creating a companion TS template!