~ MIDI and OSC tools improvements - MIDI processing and mDNS support

I’ve just pushed some updates to mot — a command-line application for working with OSC and MIDI messages. My LLM tells me that these are exciting updates but I am not entirely sure that this is the case. Let me know if this ticks your box and seek professional help.

1. Scriptable MIDI Processor via Lua

I have implemented a MIDI processor that lets you transform, filter, and generate MIDI messages using Lua scripts.

Why is this useful? MIDI processors act as middlemen between your input devices and output destinations.You can do the following on incoming MIDI messages:

• Transform - Transpose notes, generate chords, map velocity curves
• Filter - Block unwanted messages - channels - or select specific ranges
• Route - Send different notes to different channel
• Generate - Create complex patterns from simple input

The processor reads incoming MIDI from a physical device, processes it through your Lua script, and outputs the modified messages to a virtual MIDI port that your DAW or synth can receive. Some examples:

  






  
# Generate chords from single notes
mot midi_processor --script scripts/chord_generator.lua 0 6666

# Transpose notes up by one octave
mot midi_processor --script scripts/example_processor.lua 0 6666

2. Network Discovery via mDNS

OSC receivers now advertise themselves on the network using mDNS/Bonjour with the _osc._udp service type.

This makes mot compatible with the EMI-kit — the Embodied Music Interface Kit developed at IPEM, Ghent University. OSC-enabled devices can automatically discover mot receivers on your network, eliminating manual configuration if the OSC sources add this functionality.

Get started

Installation via Rust’s cargo:

  





  
git clone https://github.com/JorenSix/mot.git
cd mot
cargo install --path .
mot midi_processor -h

Check out the mot repository for full documentation and example Lua scripts!

UGent, Code, and Music Information Retrieval