input/lsr/changing-time-signatures-inside-a-polymetric-section-using-scaledurations.ly

   1 %% Do not edit this file; it is auto-generated from input/new
   2 %% This file is in the public domain.
   3 %% Note: this file works from version 2.12.0
   4 \version "2.13.1"
   5 \header {
   6   texidoces = "
   7 La propiedad @code{measureLength}, junto con
   8 @code{measurePosition}, determina cuándo es necesario dibujar una
   9 línea divisoria.  Sin embargo, al utilizar
  10 @code{\\scaleDurations}, el escalado proporcional de las
  11 duraciones hace difícil introducir cambios de compás.  En este
  12 caso se debe establecer manualmente el valor de
  13 @code{measureLength} utilizando la función @code{ly:make-moment}.
  14 El segundo argumento debe ser el mismo que el segundo argumento de
  15 @code{\\scaleDurations}.
  16
  17 "
  18   doctitlees = "Modificar el compás dentro de una sección polimétrica utilizando @code{\\scaleDurations}"
  19
  20   lsrtags = "rhythms,contexts-and-engravers"
  21   texidoc = "The @code{measureLength} property, together with
  22 @code{measurePosition}, determines when a bar line is needed.  However,
  23 when using @code{\\scaleDurations}, the scaling of durations makes it
  24 difficult to change time signatures.  In this case, @code{measureLength}
  25 should be set manually, using the @code{ly:make-moment} callback.  The
  26 second argument must be the same as the second argument of
  27 @code{\\scaleDurations}."
  28   doctitle = "Changing time signatures inside a polymetric section using @code{\\scaleDurations}"
  29 } % begin verbatim
  30
  31
  32 \layout {
  33   \context {
  34     \Score
  35     \remove "Timing_translator"
  36     \remove "Default_bar_line_engraver"
  37   }
  38   \context {
  39     \Staff
  40     \consists "Timing_translator"
  41     \consists "Default_bar_line_engraver"
  42   }
  43 }
  44
  45 <<
  46   \new Staff {
  47     \scaleDurations #'(8 . 5) {
  48       \time 6/8
  49       \set Timing.measureLength = #(ly:make-moment 6 5)
  50       b8 b b b b b
  51       \time 2/4
  52       \set Timing.measureLength = #(ly:make-moment 4 5)
  53       b4 b
  54     }
  55   }
  56   \new Staff {
  57     \clef bass
  58     \time 2/4
  59     c2 d e f
  60   }
  61 >>