Re: rests in chord symbols with volta endings

[Jean Abou Samra]

Le mercredi 26 avril 2023 à 14:19 -0700, Flaming Hakama by Elaine a écrit :

Hi, 

I was trying to use https://lsr.di.unimi.it/LSR/Snippet?id=529 to add some rests to chord symbols

After using convert-ly it worked as is.

However, when using this in the context of repeat voltas, 
chords in the endings appear above the ending lines,  rather than below as normal.

Does anyone have any suggestions for how to get the chord symbols below the ending lines?

Well, the snippet neither adds Axis_group_engraver to ChordNamesRests, nor makes it child of some context with Axis_group_engraver like Staff. As a result, the chord name grobs are at the level of the whole system, like other system-level grobs such as volta brackets or rehearsal marks. Actually, they are more “system-level” than those, because grobs like volta brackets are moved inside the top staff after line breaking.

I don't understand why the snippet has these VerticalAxisGroup overrides. They have no effect, since there is no VerticalAxisGroup in the context.

Try

\version "2.24.1"

\layout {
  \context {
    \type Engraver_group
    \name ChordNamesRests
    \description "Typesets chord names."

    \consists Output_property_engraver
    \consists Separating_line_group_engraver
    \consists Chord_name_engraver
    \consists Current_chord_text_engraver
    \consists Rest_engraver
    noChordSymbol = ##f
    \consists Axis_group_engraver
    \override VerticalAxisGroup.staff-affinity = #DOWN
    \override VerticalAxisGroup.remove-first = ##t
    \override VerticalAxisGroup.remove-empty = ##t
  }
  \context {
    \Score
    \accepts ChordNamesRests
  }
}

music = {
  c4 d e d
  f4 r g r
  c,1
}

structure = {
    \repeat volta 2 { 
        s1
    }
    \alternative {
        { s1 }
        { s1 }
    }
}
\score {
  <<
    \new ChordNamesRests {
      \chordmode {
        \override Rest.Y-offset = #1
        \music
      }
    }
    \relative c' <<
        \structure
        \music
    >>
>>
}

Regards,

Jean

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