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Mido - MIDI Objects for Python

Mido is a library for working with MIDI messages and ports:

>>> import mido
>>> msg = mido.Message('note_on', note=60)
>>> msg.type
'note_on'
>>> msg.note
60
>>> msg.bytes()
[144, 60, 64]
>>> msg.copy(channel=2)
Message('note_on', channel=2, note=60, velocity=64, time=0)
port = mido.open_output('Port Name')
port.send(msg)
with mido.open_input() as inport:
    for msg in inport:
        print(msg)
mid = mido.MidiFile('song.mid')
for msg in mid.play():
    port.send(msg)

Full documentation at https://mido.readthedocs.io/

Main Features

  • works in Python 2 and 3.
  • convenient message objects.
  • supports RtMidi, PortMidi and Pygame. New backends are easy to write.
  • full support for all 18 messages defined by the MIDI standard.
  • standard port API allows all kinds of input and output ports to be used interchangeably. New port types can be written by subclassing and overriding a few methods.
  • includes a reusable MIDI stream parser.
  • full support for MIDI files (read, write, create and play) with complete access to every message in the file, including all common meta messages.
  • can read and write SYX files (binary and plain text).
  • implements (somewhat experimental) MIDI over TCP/IP with socket ports. This allows for example wireless MIDI between two computers.
  • includes programs for playing MIDI files, listing ports and serving and forwarding ports over a network.

Status

1.2 is the third stable release.

Requirements

Mido targets Python 3.6 and 2.7.

Installing

pip install mido

If you want to use ports:

pip install python-rtmidi

See docs/backends/ for other backends.

Source Code

https://github.com/mido/mido/

License

Mido is released under the terms of the MIT license.

Questions and suggestions

For questions and proposals which may not fit into issues or pull requests, we recommend to ask and discuss on Discussions.