Utils for MIDI Devices

A framework based on mididings for control of hardware synths using generic MIDI hardware controllers.

Usage

There are three pieces of data/code for each mapping:

• Control surface messages are mapped to identifiers
• Synth/Sampler/Device parameter changes are also mapped to identifiers
• By mapping identifiers of control surface elements to identifiers of parameter changes, those elements can now be used to control the respective parameter of the device

All these pieces are python scripts. The latter is the script to be executed to control the synth via the control surface. At the moment those scripts have the naming scheme <control surface model>_<synth model>_map.py (_ and - are both used atm). The former two are provided in files which have the naming scheme <manufacturer>_<model>.py.

When you want to run a mapping script you can change the regular expressions at the beginning of the script to match the Jack MIDI ports to which you have your controller, keyboard and synth connected to have them automatically connected to the script on startup. My setup uses these ports for the midimix-tx7-map e.g.,:

synth_port_pattern = r'(a2j:USB MIDI Interface.*MIDI 1)|(a2j:Ploytec GM5.*: \[0\].*)'
keys_port_pattern = r'(a2j:Axiom.*MIDI 1)|(a2j:RtMidi.*ebus_bridge)|(a2j:MIDIboxKB.*MIDI 1)'
control_port_pattern = r'a2j:MIDI Mix.*MIDI 1'

Or you can run the script as-is and manually connect the ports each time you execute the script.

In the future I plan to have a user-wide config file, which assigns ports to devices, so they don’t have to be hard coded into the scripts.

Supported Devices

Category	Device	Status
Synth	Yamaha DX7/TX7	Control of all parameters via SysEx, PatchDump working
Synth	Yamaha TX81z/YS200	Control of all parameters via SysEx
Synth	Roland Alpha Juno 1/2	Control of all parameters via SysEx
Sampler/Synth	Yamaha A3000	Control of front panel encoders via SysEx
Control Surface	Akai Midimix	CCs for all faders and buttons mapped
Control Surface	Arturia Beatstep Pro	CCs for encoders in Mackie mode mapped

Device Mapping Matrix

The following table shows between which devices a mapping is implemented.

	Yamaha DX7/TX7	Yamaha TX81z/YS200	Roland Alpha Juno	Yamaha A3000
Akai Midimix	X	X	X
Arturia Beatstep Pro				(Front panel encoders only)