Hi Aaron,
here's another example that causes the error:
\version "2.19.82"
\relative c'' {
\time 4/16
gis'32[ e c a \repeat tremolo 8 { fis64] }
}
Again, it seems related to collisions between beams and tremolo glyphs. But
here, the 32nd-notes should force the bottom beam low enough that there's
room for them, yet for whatever reason it fails anyway.
Oh well. I guess I'll just force manual beaming as a workaround for now.
Thanks for the help,
A
On Mon, Feb 25, 2019 at 12:11 PM Aaron Hill <lilyp...@hillvisions.com>
wrote:
> On 2019-02-25 2:15 am, Thomas Morley wrote:
> > Am Mo., 25. Feb. 2019 um 11:02 Uhr schrieb N. Andrew Walsh
> > <n.andrew.wa...@gmail.com>:
> >>
> >> Hi Aaron,
> >>
> >> On Mon, Feb 25, 2019 at 10:50 AM Aaron Hill <lilyp...@hillvisions.com>
> >> wrote:
> >> You could try manually lengthening
> >>>
> >>> the stem to see if it helps as a possible workaround.
> >>
> >>
> >> I've gone all the way out to
> >>
> >> \once \override Beam.positions = #'(-20 . -24)
> >>
> >> and still get the error, so I don't think tweaking stem length is
> >> going to help. Any idea what the error might be? Is there a bug
> >> report?
> >>
> >> Thanks for the help,
> >>
> >> A
> > Some discussion here:
> > https://lists.gnu.org/archive/html/bug-lilypond/2019-02/msg00000.html
>
> I was so certain I had posted to the bug alias on this issue, but I
> cannot find it. It was a pretty big write up too, testing lots of
> things. But I am feeling like I must have dreamt it, since there's no
> trace. :-/
>
>
> > Here another minimal:
> >
> > \relative c'' {
> > %\voiceOne
> > d16. d32 \repeat tremolo 4 { b32 }
> > }
> >
> > Looks like the error happens only if stems are pointing down, thus
> > above compiles fine if voiceOne is uncommented.
>
> The issue doesn't seem to be precisely stem direction. You can trigger
> it with this:
>
> %%%%
> \version "2.19.82"
> { a32 8..:32 }
> %%%%
>
> If you change the note to g, then it works. Lower notes result in a
> longer stem, which is why I had thought it might have something to do
> with stem length.
>
> But then I found that beam-thickness can affect things too:
>
> %%%%
> \version "2.19.82"
> { \override Beam.beam-thickness = #0.488934 a32 8..:32 }
> %%%%
>
> This fails, but change the thickness to #0.488935 or higher and it
> works.
>
> %%%%
> \version "2.19.82"
> { \override StemTremolo.beam-thickness = #0.465801 a32 8..:32 }
> %%%%
>
> Again, this will fail, but *lower* the thickness to #0.465800 and it
> works.
>
> -- Aaron Hill
>
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