input/regression/tag-filter.ly

   1
   2 \version "2.12.0"
   3 \header {
   4
   5   texidoc = "The @code{\\tag} command marks music expressions with a
   6 name. These tagged expressions can be filtered out later. This
   7 mechanism can be used to make different versions of the same music. In
   8 this example, the top stave displays the music expression with all
   9 tags included. The bottom two staves are filtered: the part has cue
  10 notes and fingerings, but the score has not."
  11
  12 }
  13
  14 \layout { ragged-right= ##t }
  15
  16 common =
  17 \relative c''  {
  18
  19   c1
  20   \relative c' <<
  21     \tag #'part <<
  22       R1 \\
  23       {
  24         \set fontSize = #-1
  25         c4_"cue" f2 g4 }
  26     >>
  27     \tag #'score R1
  28   >>
  29   c1-\tag #'part ^4
  30 }
  31
  32
  33
  34 \simultaneous {
  35   \new Staff {
  36     \set Staff.instrumentName = #"both"
  37     \common
  38   }
  39   \new Staff {
  40     \set Staff.instrumentName = #"part"
  41     \keepWithTag #'part \common
  42   }
  43   \new Staff {
  44     \set Staff.instrumentName = #"score"
  45     \keepWithTag #'score \common
  46   }
  47 }
  48
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  53