Basically, this is
https://gitlab.com/lilypond/lilypond/-/issues/4157
<https://gitlab.com/lilypond/lilypond/-/issues/4157>
Thanks for looking into it. I just wanted to make sure it is either me
being stupid or a bug/weirdness in LP. Since apparently it is known
already that's fine with me.
The problem is related to \RemoveAllEmptyStaves. In essence, horizontal
spacing is computed as if the staves that are being removed were still
present. If you comment out the \RemoveAllEmptyStaves line, you will see
that the objects taking this space are the clefs and time signatures.
FWIW my expectation would be that staves with no content at all have no
impact whatsoever on the layout when I say \RemoveAllEmptyStaves.
It's not clear from your example what the \guitarPart is for,
I removed the content for the sake of simplicity.
In my real world application I do add the content conditionally (or
leave it out).
Kind regards,
Michael
--
Michael Gerdau email: m...@qata.de
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