Re: Function for turning music upside-down.

[Jean Abou Samra]

Le mardi 28 mars 2023 à 09:30 +0200, Silvain Dupertuis a écrit :

How are enharmonic notes supposed to be treated in such a function?

\version "2.24.1"

m = \relative c' { c cis des d dis ees e fes }

{ \m }

\inversion c' c' \m

gives

which looks fine to me. Essentially, both the diatonic step and the heard pitch are inverted. This is similar to how transposition works.

Inversion in, e.g., a Bach fugue subject is a bit different, as it inverts the diatonic steps but keeps the notes on the scale, effectively changing the heard intervals (e.g., in C major, if you invert D around C like this, you get B, not B♭); LilyPond doesn't implement this.

signature.asc
Description: This is a digitally signed message part