Caution

You're reading an old version of this documentation. If you want up-to-date information, please have a look at 0.9.1.

librosa.core.midi_to_note¶

librosa.core.midi_to_note(midi, octave=True, cents=False)[source]¶

Convert one or more MIDI numbers to note strings.

MIDI numbers will be rounded to the nearest integer.

Notes will be of the format ‘C0’, ‘C#0’, ‘D0’, …

Parameters

midiint or iterable of int: Midi numbers to convert.
octave: bool: If True, include the octave number
cents: bool: If true, cent markers will be appended for fractional notes. Eg, midi_to_note(69.3, cents=True) == A4+03

Returns

notesstr or iterable of str: Strings describing each midi note.

Raises

ParameterError: if cents is True and octave is False

See also

midi_to_hz
note_to_midi
hz_to_note

Examples

>>> librosa.midi_to_note(0)
'C-1'
>>> librosa.midi_to_note(37)
'C#2'
>>> librosa.midi_to_note(-2)
'A#-2'
>>> librosa.midi_to_note(104.7)
'A7'
>>> librosa.midi_to_note(104.7, cents=True)
'A7-30'
>>> librosa.midi_to_note(list(range(12, 24)))
['C0', 'C#0', 'D0', 'D#0', 'E0', 'F0', 'F#0', 'G0', 'G#0', 'A0', 'A#0', 'B0']