Beams over rests and concaveness

[Gilberto Agostinho]

Hello bug-squad,

It seems that the beam concaveness value is ignored when beaming over rests,
in the case of a single note with a single rest. This happens with and
without stemlet. See the code and score below, the groups marked with an
asterisk should have been flat (+inf.0 concaveness):

\version "2.19.82"
{
  \time 12/8
  g8[ g'8]
  \once \override Beam.concaveness = #+inf.0
  g8[ g'8]
 
  g8[ r8]
  \once \override Beam.concaveness = #+inf.0
  g8[ r8]^"*"
 
  \override Stem.stemlet-length = #1
  g8[ r8]
  \once \override Beam.concaveness = #+inf.0
  g8[ r8]^"*"
 
  g8[ g'16 g''16]
  \once \override Beam.concaveness = #+inf.0
  g8[ g'16 g''16]
 
  g8[ r16 g''16]
  \once \override Beam.concaveness = #+inf.0
  g8[ r16 g''16]
 
  \override Stem.stemlet-length = #1
  g8[ r16 g''16]
  \once \override Beam.concaveness = #+inf.0
  g8[ r16 g''16]
}

<http://lilypond.1069038.n5.nabble.com/file/t4165/beam.png>

Originally reported here:
http://lilypond.1069038.n5.nabble.com/Beams-over-rests-and-concaveness-td227600.html
So it seems that neither concaveness nor damping affects those beams with
asterisks, but manually setting their positions is a workaround.

Many thanks,
Gilberto






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