Repeats

Repeats


Volta-Klammern zu zusätzlichen Systemen hinzufügen

Der Volta_engraver befindet sich im Score-Kontext und Klammern werden deshalb nur auf dem obersten System dargestellt. Das kann umgangen werden, indem man den Volta_engraver zu dem Staff-Kontext hinzufügt, in dem die Klammern zusätzlichen vorkommen sollen. Siehe auch das "Volta multi staff"-Schnipsel.

<<
  \new Staff { \repeat volta 2 { c'1 } \alternative { c' } }
  \new Staff { \repeat volta 2 { c'1 } \alternative { c' } }
  \new Staff \with { \consists "Volta_engraver" } { c'2 g' e' a' }
  \new Staff { \repeat volta 2 { c'1 } \alternative { c' } }
>>

[image of music]


Centered measure numbers

Scores of large ensemble works often have bar numbers placed beneath the system, centered horizontally on the measure’s extent. This snippet shows how the Measure_counter_engraver may be used to simulate this notational practice. Here, the engraver has been added to a Dynamics context.

This snippet presents a legacy method: starting from LilyPond 2.23.3, \set Score.centerBarNumbers = ##t is enough.

\layout {
  \context {
    \Dynamics
    \consists #Measure_counter_engraver
    \override MeasureCounter.direction = #DOWN
    \override MeasureCounter.font-encoding = #'latin1
    \override MeasureCounter.font-shape = #'italic
    % to control the distance of the Dynamics context from the staff:
    \override VerticalAxisGroup.nonstaff-relatedstaff-spacing.padding = #2
  }
  \context {
    \Score
    \remove "Bar_number_engraver"
  }
}

pattern = \repeat unfold 7 { c'4 d' e' f' }

\new StaffGroup <<
  \new Staff {
    \pattern
  }
  \new Staff {
    \pattern
  }
  \new Dynamics {
    \startMeasureCount
    s1*7
    \stopMeasureCount
  }
>>

[image of music]


Changing the default bar lines

Default bar lines can be changed when re-defined in a score context.

% http://lsr.di.unimi.it/LSR/Item?id=964
%%=> http://lists.gnu.org/archive/html/lilypond-user/2014-03/msg00126.html
%%=> http://lilypond.1069038.n5.nabble.com/Changing-the-default-end-repeat-bracket-tc169357.html

\layout {
  \context {
    \Score
    %% Changing the defaults from engraver-init.ly
    measureBarType = #"!"
    startRepeatBarType = #"[|:"
    endRepeatBarType = #":|]"
    doubleRepeatBarType = #":|][|:"
  }
}

%% example:
{
  c'1
  \repeat volta 2 { \repeat unfold 2 c' }
  \repeat volta 2 { \repeat unfold 2 c' }
  \alternative {
    { c' }
    {
      %% v2.18 workaround
      \once\override Score.VoltaBracket.shorten-pair = #'(1 . -1)
      c'
    }
  }
  \bar "|."
}

[image of music]


Cross-staff tremolos

Since \repeat tremolo expects exactly two musical arguments for chord tremolos, the note or chord which changes staff within a cross-staff tremolo should be placed inside curly braces together with its \change Staff command.

\new PianoStaff <<
  \new Staff = "up" \relative c'' {
    \key a \major
    \time 3/8
    s4.
  }
  \new Staff = "down" \relative c'' {
    \key a \major
    \time 3/8
    \voiceOne
    \repeat tremolo 6 {
      <a e'>32
      {
        \change Staff = "up"
        \voiceTwo
        <cis a' dis>32
      }
    }
  }
>>

[image of music]


Engraving tremolos with floating beams

If a tremolo’s total duration is less than a quarter-note, or exactly a half-note, or between a half-note and a whole-note, it is normally typeset with all beams touching the stems. Certain engraving styles typeset some of these beams as centered floating beams that do not touch the stems. The number of floating beams in this type of tremolo is controlled with the 'gap-count property of the Beam object, and the size of the gaps between beams and stems is set with the 'gap property.

\relative c'' {
  \repeat tremolo 8 { a32 f }
  \override Beam.gap-count = #1
  \repeat tremolo 8 { a32 f }
  \override Beam.gap-count = #2
  \repeat tremolo 8 { a32 f }
  \override Beam.gap-count = #3
  \repeat tremolo 8 { a32 f }

  \override Beam.gap-count = #3
  \override Beam.gap = #1.33
  \repeat tremolo 8 { a32 f }
  \override Beam.gap = #1
  \repeat tremolo 8 { a32 f }
  \override Beam.gap = #0.67
  \repeat tremolo 8 { a32 f }
  \override Beam.gap = #0.33
  \repeat tremolo 8 { a32 f }
}

[image of music]


Isolierte Prozentwiederholungen

Isolierte Prozentwiederholungen können auch ausgegeben werden. Das wird erreicht, indem man eine Ganztaktpause notiert und ihre Ausgabeform ändert:

makePercent =
#(define-music-function (note) (ly:music?)
   "Make a percent repeat the same length as NOTE."
   (make-music 'PercentEvent
               'length (ly:music-length note)))

\relative c'' {
  \makePercent s1
}

[image of music]


Measure counter

This snippet provides a workaround for emitting measure counters using transparent percent repeats.

<<
  \context Voice = "foo" {
    \clef bass
    c4 r g r
    c4 r g r
    c4 r g r
    c4 r g r
  }
  \context Voice = "foo" {
    \set countPercentRepeats = ##t
    \hide PercentRepeat
    \override PercentRepeatCounter.staff-padding = #1
    \repeat percent 4 { s1 }
  }
>>

[image of music]


Numbering groups of measures

This snippet demonstrates the use of the Measure_counter_engraver to number groups of successive measures. Any stretch of measures may be numbered, whether consisting of repetitions or not.

The engraver must be added to the appropriate context. Here, a Staff context is used; another possibility is a Dynamics context.

The counter is begun with \startMeasureCount and ended with \stopMeasureCount. Numbering will start by default with 1, but this behavior may be modified by overriding the count-from property.

When a measure extends across a line break, the number will appear twice, the second time in parentheses.

\layout {
  \context {
    \Staff
    \consists #Measure_counter_engraver
  }
}

\new Staff {
  \startMeasureCount
  \repeat unfold 7 {
    c'4 d' e' f'
  }
  \stopMeasureCount
  \bar "||"
  g'4 f' e' d'
  \override Staff.MeasureCounter.count-from = #2
  \startMeasureCount
  \repeat unfold 5 {
    g'4 f' e' d'
  }
  g'4 f'
  \bar ""
  \break
  e'4 d'
  \repeat unfold 7 {
    g'4 f' e' d'
  }
  \stopMeasureCount
}

[image of music]


Sichtbarkeit von Prozent-Wiederholungen

Prozentwiederholungszähler können in regelmäßigen Intervallen angezeigt werden, indem man die Eigenschaft repeatCountVisibility beeinflusst.

\relative c'' {
  \set countPercentRepeats = ##t
  \set repeatCountVisibility = #(every-nth-repeat-count-visible 5)
  \repeat percent 10 { c1 } \break
  \set repeatCountVisibility = #(every-nth-repeat-count-visible 2)
  \repeat percent 6 { c1 d1 }
}

[image of music]


Prozent-Wiederholungen zählen

Ganztaktwiederholungen mit mehr als zwei Wiederholungen erhalten einen Zähler, wenn man die entsprechende Eigenschaft einsetzt:

\relative c'' {
  \set countPercentRepeats = ##t
  \repeat percent 4 { c1 }
}

[image of music]


Positioning segno and coda (with line break)

If you want to place an exiting segno sign and add text like „D.S. al Coda“ next to it where usually the staff lines are you can use this snippet. The coda will resume in a new line. There is a variation documented in this snippet, where the coda will remain on the same line.

{
  \relative c'' {
    c4 c c c c c c c c c c c
    \repeat segno 2 {
      c4 c c c c c c c
      \alternative {
        \volta 1 {
          c4 c c c c c c c c c c c
          % If you don't use \break at Coda, use \noBreak here
          % and after \bar "" below.
          \noBreak
          \section % double bar line
          \cadenzaOn % pause bar count
          \stopStaff % remove staff lines
          % Increasing the unfold counter will expand the staff-free space
          \repeat unfold 6 {
            s1
            \bar ""
          }
          % Place JumpScript where the staff would normally be.
          \once \override Score.JumpScript.outside-staff-priority = ##f
          \once \override Score.JumpScript.Y-offset = 0
          \startStaff % resume bar count
          \cadenzaOff % show staff lines again
        }
      }
    }
    \sectionLabel "Coda"
    % Show Coda on a new line
    \break
    \repeat unfold 8 { c4 c c c }
    \fine
  }
}

[image of music]


Setting the double repeat default for volte

There are three different styles of double repeats for volte, that can be set using doubleRepeatBarType.

\relative c'' {
  \repeat volta 2 { c1 }
  \set Score.doubleRepeatBarType = #":..:"
  \repeat volta 2 { c1 }
  \set Score.doubleRepeatBarType = #":|.|:"
  \repeat volta 2 { c1 }
  \set Score.doubleRepeatBarType = #":|.:"
  \repeat volta 2 { c1 }
}

[image of music]


Volta-Klammern verkürzen

Volta-Klammern werden normalerweise über alle Noten der Klammer gezogen, aber es ist möglich sie zu verkürzen. Hierzu muss voltaSpannerDuration definiert werden, in dem Beispiel etwa als 3/4, sodass die Klammer nur einen Takt dauert.

\relative c'' {
  \time 3/4
  c4 c c
  \set Score.voltaSpannerDuration = #(ly:make-moment 3/4)
  \repeat volta 5 { d4 d d }
  \alternative {
    {
      e4 e e
      f4 f f
    }
    { g4 g g }
  }
}

[image of music]


Wiederholungs-(Volta-)Klammern unterhalb der Akkordsymbole

Indem man den Volta_engraver zu dem entsprechenden Notensystem hinzufügt, können Wiederholungsklammern unterhalb der Akkorde gesetzt werden.

\score {
  <<
    \chords {
      c1
      c1
    }
    \new Staff \with {
      \consists "Volta_engraver"
    }
    {
      \repeat volta 2 { c'1 }
      \alternative { c' }
    }
  >>
  \layout {
    \context {
      \Score
      \remove "Volta_engraver"
    }
  }
}

[image of music]


Volta multi staff

By adding the Volta_engraver to the relevant staff, volte can be put over staves other than the topmost one in a score.

voltaMusic = \relative c'' {
  \repeat volta 2 {
    c1
  }
  \alternative {
    d1
    e1
  }
}

<<
  \new StaffGroup <<
    \new Staff \voltaMusic
    \new Staff \voltaMusic
  >>
  \new StaffGroup <<
    \new Staff \with { \consists "Volta_engraver" }
      \voltaMusic
    \new Staff \voltaMusic
  >>
>>

[image of music]


Volta text markup using repeatCommands

Though volte are best specified using \repeat volta, the context property repeatCommands must be used in cases where the volta text needs more advanced formatting with \markup.

Since repeatCommands takes a list, the simplest method of including markup is to use an identifier for the text and embed it in the command list using the Scheme syntax #(list (list 'volta textIdentifier)). Start- and end-repeat commands can be added as separate list elements:

voltaAdLib = \markup { 1. 2. 3... \text \italic { ad lib. } }

\relative c'' {
  c1
  \set Score.repeatCommands = #(list (list 'volta voltaAdLib) 'start-repeat)
  c4 b d e
  \set Score.repeatCommands = #'((volta #f) (volta "4.") end-repeat)
  f1
  \set Score.repeatCommands = #'((volta #f))
}

[image of music]


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