mididings(1) MIDI router and processor


mididings [options] "patch"

mididings [options] -f filename


mididings is a MIDI router and processor based on Python, supporting ALSA and JACK MIDI.

Many features are provided:

MIDI routing and filtering
Filter events depending on their event type, channel, note number, velocity, etc., and freely route them between an arbitrary number of input and output ports.
Modifying and converting MIDI events
Transpose notes, apply velocity curves, change controller values and ranges, or convert events to any other MIDI event type. mididings also includes more complex functions like a diatonic harmonizer, floating split points, latched notes, and more.
Seamless switching between patches
Set up different "scenes", each with its own MIDI routing and processing, and switch between them at any time, even while playing. Switching scenes does not affect notes already held, and does not result in dropouts or stuck notes!
MIDI event monitoring, running external commands
Print MIDI event data to the console to help debugging your patches and configuring your MIDI controllers. In addition to its MIDI output, mididings can also execute shell commands and send OSC or DBUS messages.


-h, --help
show this help message and exit
name of backend to use
ALSA or JACK client name
number of input ports
number of output ports
delay (in seconds) before starting MIDI processing
filename of script to run


mididings was written by Dominic Sacré <[email protected]>.

This manual page was written by Alessio Treglia <[email protected]>, for the Debian project (and may be used by others).