Janek Warchoł wrote
> Colin, don't use explicit lyrics timing. Alignment of
> unassociated lyrics (i.e. lyrics that don't use \addlyrics/\lyricsto)
> is broken, [...]
> David, i apologize for butting in like that, but i believe that we
> shouldn't advocate using features that are broken.
Janek, I had read about explicit timing in the documentation, but I never
considered using it.
Minimal case:
This triggers an erroneous barcheck warning:
<<
\new Staff
<<
\new Voice = "cantus" \relative c'' { c4 c4 c4 c4~ | c4 c4 c4 c4
| c4 c4 c4 c4 | }
\lyricsto "cantus" \new Lyrics \lyricmode { do do do do | do do do |
do do do do | }
>>
>>
Removing the pipe symbol that is located at the position that corresponds to
the tie that straddles the bar line:
<<
\new Staff
<<
\new Voice = "cantus" \relative c'' { c4 c4 c4 c4~ | c4 c4 c4 c4
| c4 c4 c4 c4 | }
\lyricsto "cantus" \new Lyrics \lyricmode { do do do do do do do |
do do do do | }
>>
>>
My intended workaround: a pipe symbol, visible to the human, ignored by the
machine
<<
\new Staff
<<
\new Voice = "cantus" \relative c'' { c4 c4 c4 c4~ | c4 c4 c4 c4
| c4 c4 c4 c4 | }
\lyricsto "cantus" \new Lyrics \lyricmode { do do do do %{|%} do do do |
do do do do | }
>>
>>
I can't resist speculating what is happening.
Given:
The bar check algoritm for the staff checks whether the sum of the lengths
of the notes in each bar equals the duration of the bar.
Supposition:
- LilyPond first places the syllables
- Given their positions Lilypond figures out the duration of each syllable
- Lilypond checks whether the sum of the syllable durations matches the
duration of the bar
When there is a tie in the _Staff_ , the sum of the durations of the
syllables in the _next_ bar comes up short.
Fortunately the problem can be worked around by omitting the pipe symbol in
the lyrics at the spot where the tie _in the staff_ straddles the bar line.
(I'm emphasizing the bit about ties _in the staff_ because David Kastrup
somehow ended up writing about ties in the lyrics, which are handled
perfectly by LilyPond.)
--
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