Re: font size override and grace notes

[David Kastrup]

Matt Cary <address@hidden> writes:

>> > better use \once to override the size of the g, or revert the note heads
>> > size after the slashed grace is done:
>> >
>> > \override NoteHead #'font-size = #4    g
>> > \slashedGrace                                  a16( 
>> > \revert NoteHead #'font-size              b8)
>> 
>> In this particular case, it would likely be safer to use a \tweak.
>> tweaks are not timing-related and thus are impervious to the quirks of
>> grace note timing.
>> 
>
> Thanks for the advice. I guess I'm surprised the revert doesn't happen 
> immediately. This arose in a more complicated context where I don't think 
> doing tweaks is relevant; the initial override is from a function where I'm 
> notating a strum.
>
> strumFn = 
> #(define-music-function
>   (parser location strums)
>   (ly:music?)
>    #{
>       \set squashedPosition = #-2
>       \override NoteHead #'style = #'slash
>       \override NoteHead #'font-size = #1
>       \override Beam #'positions = #'(4 . 4)
>       \override Stem #'length = #8
>       \override Accidental #'stencil = ##f
>       \override AccidentalCautionary #'stencil = ##f
>
>       \stemUp
>       #strums
>       \stemNeutral
>
>       \unset squashedPosition
>       \revert NoteHead #'style
>       \revert NoteHead #'font-size
>       \revert Beam #'positions
>       \revert Stem #'length
>       \revert Accidental #'stencil
>       \revert AccidentalCautionary #'stencil
>
>    #})
>
> \new Voice = "melody" \with {
>     \consists "Pitch_squash_engraver" 
> } {
>  \strumFn { c8[ c] } \acciaccatura a'16 b'8
> }
>
> \version "2.16.0"

What about
strumFn = 
#(define-music-function
  (parser location strums)
  (ly:music?)
   #{
      \new Voice \with {
      \consists "Pitch_squash_engraver" 
      squashedPosition = #-2
      \override NoteHead #'style = #'slash
      \override NoteHead #'font-size = #1
      \override Beam #'positions = #'(4 . 4)
      \override Stem #'length = #8
      \override Accidental #'stencil = ##f
      \override AccidentalCautionary #'stencil = ##f
      \stemUp
     }
     { #strums
     }
   #})

\new Voice = "melody"
{
 \strumFn { c8[ c] } \acciaccatura a'16 b'8
}


-- 
David Kastrup