1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
# Welcome to python-rtmidi!
A Python binding for the RtMidi C++ library implemented using Cython.
[](https://pypi.org/project/python-rtmidi)
[](LICENSE.md)
[](https://pypi.org/project/python-rtmidi/#files)
[](https://github.com/SpotlightKid/python-rtmidi/actions)
# Overview
[RtMidi] is a set of C++ classes which provides a concise and simple,
cross-platform API (Application Programming Interface) for realtime MIDI
input / output across Linux (ALSA & JACK), macOS / OS X (CoreMIDI & JACK), and
Windows (MultiMedia System) operating systems.
[python-rtmidi] is a Python binding for RtMidi implemented using [Cython] and
provides a thin wrapper around the RtMidi C++ interface. The API is basically
the same as the C++ one but with the naming scheme of classes, methods and
parameters adapted to the Python PEP-8 conventions and requirements of the
Python package naming structure. **python-rtmidi** supports Python 3 (3.8+).
The [documentation] provides installation instructions, a history of changes
per release and an API reference.
See the file [LICENSE.md] about copyright and usage terms.
The source code repository and issue tracker are hosted on GitHub:
<https://github.com/SpotlightKid/python-rtmidi>.
## Usage example
Here's a quick example of how to use **python-rtmidi** to open the first
available MIDI output port and send a middle C note on MIDI channel 1:
```python
import time
import rtmidi
midiout = rtmidi.MidiOut()
available_ports = midiout.get_ports()
if available_ports:
midiout.open_port(0)
else:
midiout.open_virtual_port("My virtual output")
with midiout:
note_on = [0x90, 60, 112] # channel 1, middle C, velocity 112
note_off = [0x80, 60, 0]
midiout.send_message(note_on)
time.sleep(0.5)
midiout.send_message(note_off)
time.sleep(0.1)
del midiout
```
More usage examples can be found in the [examples] and [tests] directories of
the source repository.
[Cython]: http://cython.org/
[documentation]: https://spotlightkid.github.io/python-rtmidi/
[examples]: https://github.com/SpotlightKid/python-rtmidi/tree/master/examples
[LICENSE.md]: https://github.com/SpotlightKid/python-rtmidi/blob/master/LICENSE.md
[python-rtmidi]: https://github.com/SpotlightKid/python-rtmidi
[tests]: https://github.com/SpotlightKid/python-rtmidi/tree/master/tests
[RtMidi]: http://www.music.mcgill.ca/~gary/rtmidi/index.html
|
