Re: function to recognise voice crossings?

[Lukas-Fabian Moser]

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

lowest-notes2.ly
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