$ pip install synthesizer

$ apt install portaudio19-dev
$ pip install pyaudio

$ brew install portaudio
$ pip install pyaudio

>>> from synthesizer import Player, Synthesizer, Waveform


>>> player = Player()
>>> player.open_stream()
>>> synthesizer = Synthesizer(osc1_waveform=Waveform.sine, osc1_volume=1.0, use_osc2=False)
# Play A4
>>> player.play_wave(synthesizer.generate_constant_wave(440.0, 3.0))

# Play C major
>>> chord = ["C3", "E3", "G3"]
>>> player.play_wave(synthesizer.generate_chord(chord, 3.0))

# You can also specify frequencies to play just intonation
>>> chord = [440.0, 550.0, 660.0]
>>> player.play_wave(synthesizer.generate_chord(chord, 3.0))

>>> from pychord import Chord
>>> chord = Chord("Dm7/G")
>>> player.play_wave(synthesizer.generate_chord(chord.components_with_pitch(root_pitch=3), 3.0))

>>> player.enumerate_device()
# index: 00, name: "Built-in Microphone", rate: 44100
# index: 01, name: "Built-in Output", rate: 44100
# index: 02, name: "UA-25EX 44.1kHz", rate: 44100
>>> player.open_stream(device_name="UA-25EX")

>>> from synthesizer import Writer
>>> writer = Writer()

>>> chord = ["C4", "E4", "G4"]
>>> wave = synthesizer.generate_chord(chord, 3.0)
>>> writer.write_wave("path/to/your.wav", wave)

pip install pychord>=0.5.0
python example/play_pychord.py A C#m7 DM7 Bm7/E A

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