Dear Lilypond team,
Using GNU LilyPond 2.24.1 (running Guile 2.2), the following example seems to
generate a note visibility bug:
\version "2.24.1"
\language "english"
\book {
\score {
\new Staff = "LH" \with { printPartCombineTexts = ##f } {
\time 4/4
\key ef \major
\clef "bass"
\partCombine
\relative c {
\voiceThree
% bar 1:
f-2 ef8-3 f-2 g-1 af-2 \hideNotes bf4 \unHideNotes |
% if "\hideNotes" and "\unHideNotes" are removed, the bug goes away
in bar 3
% bar 2: if you remove this bar entirely, the bug goes away
c,-5 e-3 f-1 af-2 |
% bar 3:
af2.-2 g4-1 | % Bug: missing/invisible notes! Fingering visible but
note heads/stems not.
}
\relative c {
\voiceFour
% bar 1:
d4_4 c8_5 d_4 ef4-3 ef8-3 d-4 |
% bar 2:
c4 e f af |
% bar 3:
bf,1-5 |
}
}
}
}
The bug is shown graphically below. In the final bar, the tenor part has
invisible note heads/stems (although its fingering is shown). If the note
hiding in bar 1 is removed, the bug goes away – but equally if bar 2 is removed
in its entirety, the bug goes away. It looks like there is some sort of
hangover effect from \hideNotes and \unHideNotes that (seemingly randomly)
affect a subsequent bar. In my original example, the bug occurred 6 bars after
the hide/unhide bar (rather than 2 bars after as in this example).
all the best,
Rudolf.
[cid:f7b534f7-7b09-499c-bc86-40c6ff4fd7a4]
