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 \version "2.11.62"
   4 \header {
   5   texidoces = "
   6 La propiedad @code{measureLength}, junto con
   7 @code{measurePosition}, determina cuándo es necesario dibujar una
   8 línea divisoria.  Sin embargo, al utilizar
   9 @code{\\scaleDurations}, el escalado proporcional de las
  10 duraciones hace difícil introducir cambios de compás.  En este
  11 caso se debe establecer manualmente el valor de
  12 @code{measureLength} utilizando la función @code{ly:make-moment}.
  13 El segundo argumento debe ser el mismo que el segundo argumento de
  14 @code{\\scaleDurations}.
  15
  16 "
  17   doctitlees = "Modificar el compás dentro de una sección polimétrica utilizando @code{\\scaleDurations}"
  18
  19   lsrtags = "rhythms,contexts-and-engravers"
  20   texidoc = "The @code{measureLength} property, together with
  21 @code{measurePosition}, determines when a bar line is needed.  However,
  22 when using @code{\\scaleDurations}, the scaling of durations makes it
  23 difficult to change time signatures.  In this case, @code{measureLength}
  24 should be set manually, using the @code{ly:make-moment} callback.  The
  25 second argument must be the same as the second argument of
  26 @code{\\scaleDurations}."
  27   doctitle = "Changing time signatures inside a polymetric section using @code{\\scaleDurations}"
  28 } % begin verbatim
  29
  30 \layout {
  31   \context {
  32     \Score
  33     \remove "Timing_translator"
  34     \remove "Default_bar_line_engraver"
  35   }
  36   \context {
  37     \Staff
  38     \consists "Timing_translator"
  39     \consists "Default_bar_line_engraver"
  40   }
  41 }
  42
  43 <<
  44   \new Staff {
  45     \scaleDurations #'(8 . 5) {
  46       \time 6/8
  47       \set Timing.measureLength = #(ly:make-moment 6 5)
  48       b8 b b b b b
  49       \time 2/4
  50       \set Timing.measureLength = #(ly:make-moment 4 5)
  51       b4 b
  52     }
  53   }
  54   \new Staff {
  55     \clef bass
  56     \time 2/4
  57     c2 d e f
  58   }
  59 >>