Am Sa., 30. März 2019 um 20:20 Uhr schrieb N Trocado <uio...@hotmail.com>:
>
> The following produces a barcheck warning:
>
> \version "2.19.82"
>
> \layout {
> \context {
> \Score
> \remove "Timing_translator"
> \remove "Default_bar_line_engraver"
> }
> \context {
> \Staff
> \consists "Timing_translator"
> \consists "Default_bar_line_engraver"
> }
> }
>
> \score {
> <<
> \new Staff {
> \time 4/4
> a1 |
> }
> \new Staff {
> \time 7/8
> a4. a4 a |
> }
> >>
> \layout { }
> \midi { }
> }
>
> -> 21:10: warning: barcheck failed at: 1/8
> a1
> |
>
> There's no warning if I comment out the midi block.
> Despite the warning, the midi file plays correctly, following the time
> signature of the lowest staff.
> AFAIK the midi standard may not allow for independent meters in different
> channels. If this is the reason for the barcheck warning, maybe a more
> specific (single) message would be appropriate? It took me a long time to
> find out why the barcheck warnings were being produced...
You move engravers, this has _no_ impact on midi.
Instead you should do:
\score {
<<
\new Staff {
\time 4/4
c'1 |
}
\new Staff {
\time 7/8
a4. a4 a |
}
>>
\layout {
\context {
\Score
\remove "Timing_translator"
\remove "Default_bar_line_engraver"
}
\context {
\Staff
\consists "Timing_translator"
\consists "Default_bar_line_engraver"
}
}
\midi {
\context {
\Score
\remove "Timing_translator"
}
\context {
\Staff
\consists "Timing_translator"
}
}
}
So no bug in the source code.
Admittedly midi is highly underdocumented.
Which is the real problem here ...
Cheers,
Harm
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