Re: slur and percent

[Aaron Hill]

> > Is there any way to write this
> >
> > \version "2.19.81"
> > {a( b c' a a b c' a)}
> >
> > with a repeat percent? Something similar to this:
> >
> > \version "2.19.81"
> > {\repeat percent 2 {a( b c' a} ) }
> >
> > Thank you, g.
>
> I found in the documentation the "Isolated percents". Here it is the
> documentation excerpt:
>
> makePercent =
> #(define-music-function (note) (ly:music?)
>    "Make a percent repeat the same length as NOTE."
>    (make-music 'PercentEvent
>                'length (ly:music-length note)))
>
> \relative c'' {
>   \makePercent s1
> }
>
> What about the midi generation? Should I handle it with tag or there is 
> a
> better way?

Consider the following:

%%%
\version "2.19.80"

makePercent =
  #(define-music-function (parser location note) (ly:music?)
    "Make a percent repeat the same length as NOTE."
    (make-music 'PercentEvent
      'length (ly:music-length note)))

original = { a4( b c' a a b c' a) }

percentRepeat = { \repeat percent 2 { \slurHalfSolid a4( b c' a) } }

hiddenNotesAndMakePercent = { <<
  { \oneVoice \slurHalfSolid a4( b c' a \hideNotes a b c' a) 
\unHideNotes } \\
  { s1 \makePercent s1 }
> > }

\score { \original \layout {} \midi {} }
\score { \percentRepeat \layout {} }
\score { \unfoldRepeats \percentRepeat \midi {} }
\score { \hiddenNotesAndMakePercent \layout {} \midi {} }
%%%

These all produce the same MIDI output with different visual renderings. 
 Obviously, the use of \slurHalfSolid is optional, but I think it adds a 
useful visual distinction to the normal slur.


-- Aaron Hill