Re: function to recognise voice crossings?

[Eef Weenink]

Thank you so much. fast  

Would be a great addition to https://lsr.di.unimi.it/list.php?type=snippet. So others have easy access?

Met vriendelijke groet, Eef

H.E. Weenink MBA

Op 17 sep. 2022 om 12:01 heeft Lukas-Fabian Moser <lfm@gmx.de> het volgende geschreven:



Hi Eef,

Am 17.09.22 um 10:52 schrieb Eef Weenink:

PS; I you might change the engraver, consider to NOT colour equal notes. (or make it an option). Equal notes do not harm the harmonic line. (for seeing where the lowest notes are, it might be set to #t).

Yes, I suspected that this might not be fitting for your need.

In my case, I wanted to mark the notes in a canon where the current line takes over the bass function: This is an interesting question in the construction of a canon, where the composer might add the bass notes "all at the same time" (usually at the end, creating additional voice-leading constraints for the voices entering before that) like in Mozart's Bona Nox:

or the bass might be constituted in different parts of the pieces by different bits in the melody like in Mozart's Gehn wir im Prater, gehn wir in'd Hetz:

Anyway: See attached. The engraver (now called in LilyPond syntax with \) now takes a mandatory argument indicating if only strict lowest notes should be coloured (#t) or not (#f). (I think the meaning of #t and #f is switched with respect to what you proposed.)

Lukas

ODi970yfnE8qautf.png
Description: ODi970yfnE8qautf.png

hpuVgtUb1OIupttW.png
Description: hpuVgtUb1OIupttW.png

lowest-notes2.ly
Description: lowest-notes2.ly