enharmonic

pitchtools.enharmonic(n, maxcents=50, diatonic_enharmonics=False)[source]

Returns the enharmonic variant of notename

For simplicity, we considere a possible enharmonic variant a note with the same sounding pitch and an alteration smaller than 150 cents from the note without any alteration (no double sharps or flats). If diatonic_enharmonics is False, enharmonics like Fb or E# are not returned.

Parameters:

notename (str) – the note to find an enharmonic variant to
maxcents – the returned enharmonic has a cents deviation lower than this. For example, “4A+30” has no enharmonic and is returned as is, since the only possible enharmonic would be “4Bb-70”, but a cents deviation of 70 is not allowed

Return type:

str

Returns:

either the enharmonic variant or the note itself

Note	Enharmonic	Has Enharmonic?
4#	4Db	✓
4C+	4Db-	✓
4E	4E	–
4E#	4F	✓
4A+10	4A+10	–
4E-25	4E-25	–
4E-	4D#+	✓