input/test/scheme-interactions.ly

   1 #(ly:set-option 'old-relative)
   2 \version "2.1.7"
   3 \header { texidoc = "@cindex Scheme Interactions
   4 With @code{ly:export}, you can pass of the result of
   5 Scheme expressions as lilypond input.  Within a Scheme expression,
   6 you can use, define or change lilypond variables.
   7
   8 In this example, the E-s and D-s are generated using scheme functions,
   9 and woven together with manually entered C-s.
  10
  11 " }
  12
  13 foo = \notes \transpose c c { d''4-. }
  14 bra = \notes \transpose c c { e'4-. }
  15
  16
  17 \score {
  18   \context Voice \notes\relative c' {
  19       c4
  20       #(ly:export (make-sequential-music (list foo foo foo )))
  21       #(begin (define baz (make-simultaneous-music (list foo bra)))
  22         (empty-music))
  23       c4
  24       \baz
  25       c4
  26   }
  27         \paper {raggedright=##t}
  28 }
  29