Re: startGraceMusic

[Simon Albrecht]

On 13.01.2016 07:27, Andrew Bernard wrote:
> There are startGraceMusic and stopGraceMusic functions that are 
> helpful for adjusting the appearance of grace notes. Are there 
> startAfterGraceMusic etc functions for \afterGrace? Currently I have 
> to manually adjust afterGrace notes to be the same as that in the 
> startGraceMusic function I have. Works fine, but it is tedious and 
> error prone.

\afterGrace is a music function, defined in ly/music-functions-init.ly 
as follows:

%% keep these two together
afterGraceFraction = #(cons 6 8)
afterGrace =
#(define-music-function (main grace) (ly:music? ly:music?)
   (_i "Create @var{grace} note(s) after a @var{main} music expression.")
   (let ((main-length (ly:music-length main))
         (fraction  (ly:parser-lookup 'afterGraceFraction)))
     (make-simultaneous-music
      (list
       main
       (make-sequential-music
        (list

         (make-music 'SkipMusic
                     'duration (ly:make-duration
                                0 0
                                (* (ly:moment-main-numerator main-length)
                                   (car fraction))
                                (* (ly:moment-main-denominator main-length)
                                   (cdr fraction))))
         (make-music 'GraceMusic
                     'element grace)))))))

Just adjust to taste and redefine it.

Best, Simon