Re: Conflicting \section and \grace?

2024-03-30 Thread Stephan Schöll 

Xavier, Knute

Thanks for your guidance! Thanks to your explanations, I now also
understand the relevance of NR 1.2.6, which I had of course consulted ;-)

Best regards
Stephan

Am 29.03.2024 um 22:34 schrieb Xavier Scheuer:

On Fri, 29 Mar 2024 at 22:31, Knute Snortum  wrote:
>
> This looks like a very old bug that LilyPond has. Basically, if you
have a grace note starting a measure in one staff, you have to have
one on all staves, even if it's just a spacer.  So adding this to the
melody will fix the problem:

Exactly.
https://gitlab.com/lilypond/lilypond/-/issues/34
This is documented in NR 1.2.6 Special rhythmic concerns > Grace notes
> Known issues and warnings

Kind regards,
Xavier

Re: Conflicting \section and \grace?

2024-03-29 Thread Xavier Scheuer 
On Fri, 29 Mar 2024 at 22:31, Knute Snortum  wrote:
>
> This looks like a very old bug that LilyPond has.  Basically, if you have
a grace note starting a measure in one staff, you have to have one on all
staves, even if it's just a spacer.  So adding this to the melody will fix
the problem:

Exactly.
https://gitlab.com/lilypond/lilypond/-/issues/34
This is documented in NR 1.2.6 Special rhythmic concerns > Grace notes
> Known issues and warnings

Kind regards,
Xavier

Re: Conflicting \section and \grace?

2024-03-29 Thread Knute Snortum 
On Fri, Mar 29, 2024 at 1:25 PM Stephan Schöll  wrote:

> Hi all
>
> I'm adding an ossia staff during specific bars only. This works fine in
> general.
>
> Interestingly / strangely, as soon as the \section (double barline)
> falls into a \grace (or \appoggiatura or \acciaccatura) in the ossia
> staff a regular barline is added at the position where I'd expect the
> double barline to appear. Without either \section or \grace, everything
> looks fine.
>
> Toggle the comment marks in order to reproduce. The issue is not related
> to the ossia Staff type (DrumStaff). It occurs with regular Staves as well.
>

This looks like a very old bug that LilyPond has.  Basically, if you have a
grace note starting a measure in one staff, you have to have one on all
staves, even if it's just a spacer.  So adding this to the melody will fix
the problem:

melody = \relative c' {
   c1
   \section % play with (un)commenting
   \grace { s8 } R1
   c
}


--
Knute Snortum

Conflicting \section and \grace?

2024-03-29 Thread Stephan Schöll 

Hi all

I'm adding an ossia staff during specific bars only. This works fine in
general.

Interestingly / strangely, as soon as the \section (double barline)
falls into a \grace (or \appoggiatura or \acciaccatura) in the ossia
staff a regular barline is added at the position where I'd expect the
double barline to appear. Without either \section or \grace, everything
looks fine.

Toggle the comment marks in order to reproduce. The issue is not related
to the ossia Staff type (DrumStaff). It occurs with regular Staves as well.

TIA

Stephan


\version "2.24"

drumFill = \drummode {
  %\grace { tomh16 16} % play with (un)commenting
  tomh16 r16
  \grace { toml16 16} 16 r16
  \grace { tomh16 16} 16 r16
  \grace { toml16 16} 16 r16
  r2
}

melody = \relative c' {
  c1
  %\section % play with (un)commenting
  R1
  c
}

\score {
  <<
    \new DrumStaff = "ossia" \with {
  \remove Time_signature_engraver
  \hide Clef
  \magnifyStaff #2/3
    }
    {
  \stopStaff s1
  \startStaff \drumFill \stopStaff
    }
    \new Staff {
  \melody
    }
  >>
  \layout {
    \context {
  \DrumStaff
  \RemoveAllEmptyStaves
    }
  }
}