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A library to handle musical chords in python.

Project description


Pychord is a python library to handle musical chords.


$ pip install pychord

Basic Usage

Create a Chord

>>> from pychord import Chord
>>> c = Chord("Am7")
>>> c
<Chord: Am7>

Transpose a Chord

>>> c = Chord("Am7/G")
>>> c.transpose(3)
>>> c
<Chord: Cm7/Bb>

Get component notes

>>> c = Chord("Am7")
>>> c.components()
['A', 'C', 'E', 'G']

Find Chords

>>> from pychord import note_to_chord
>>> note_to_chord(["C", "E", "G"])
[<Chord: C>]
>>> note_to_chord(["F#", "A", "C", "D"])
[<Chord: D7/F#>]
>>> note_to_chord(["F", "G", "C"])
[<Chord: Fsus2>, <Chord: Csus4/F>]

Create chord progressions

>>> from pychord import ChordProgression
>>> cp = ChordProgression(["C", "G/B", "Am"])
>>> cp
<ChordProgression: C | G/B | Am>

>>> cp.append("Em/G")
>>> cp
<ChordProgression: C | G/B | Am | Em/G>

>>> cp.transpose(+3)
>>> cp
<ChordProgression: Eb | Bb/D | Cm | Gm/Bb>

Supported Python Versions

  • 2.7
  • 3.3 and above



  • MIT License

Project details

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