input/new/marking-notes-of-spoken-parts-with-a-cross-on-the-stem.ly

   1 \version "2.12.0"
   2
   3 \header {
   4   lsrtags = "editorial-annotations, vocal-music"
   5
   6   texidoc = "
   7 This example shows how to put crosses on stems. Mark the beginning
   8 of a spoken section with the @code{\\speakOn} keyword, and end it
   9 with the @code{\\speakOff} keyword.  Remember to end cross sections
  10 before entering any rest: this function also adds crosses to the
  11 invisible stems of rests.
  12 "
  13   doctitle = "Marking notes of spoken parts with a cross on the stem"
  14 }
  15
  16 speakOn = {
  17   \override Stem #'stencil = #(lambda (grob)
  18   (ly:stencil-combine-at-edge
  19     (ly:stem::print grob)
  20     Y
  21     (- (ly:grob-property grob 'direction))
  22     (grob-interpret-markup grob
  23       (markup #:hspace -1.025 #:fontsize -4
  24         #:musicglyph "noteheads.s2cross"))
  25     -2.3 0))
  26 }
  27
  28 speakOff = {
  29   \revert Stem #'stencil
  30 }
  31
  32 \score {
  33   \new Staff {
  34     \relative c'' {
  35       a4 b a c
  36       \speakOn
  37       g4 f r g
  38       b4 r d e
  39       \speakOff
  40       c4 a g f
  41     }
  42   }
  43 }