Guide, node Updating translation committishes..
@end ignore
-@c \version "2.13.36"
+@c \version "2.16.0"
@node Repeats
@section Repeats
This section discusses how to input long (usually multi-measure)
repeats. The repeats can take two forms: repeats enclosed between
-repeat signs; or written out repeats, used to input repetitious music.
+repeat signs; or written-out repeats, used to input repetitious music.
Repeat signs can also be controlled manually.
@menu
The @code{measureLength} property is described in @ref{Time
administration}.
-@cindex repeats with ties
-@cindex alternative endings with ties
-@cindex ties in repeats
-@cindex ties in alternative endings
+@funindex \inStaffSegno
+
+The @code{\inStaffSegno} command can be used to place the segno
+symbol in cooperation with the @code{\repeat volta} command.
+Alternative bar line symbols can be set in a Score context by
+overriding the properties @code{segnoType},
+@code{startRepeatSegnoType}, @code{endRepeatSegnoType} or
+@code{doubleRepeatSegnoType} as required.
+
+@lilypond[verbatim,quote,relative=1]
+e1
+\repeat volta 2 {
+ \inStaffSegno
+ f2 g a b
+}
+c1_"D.S." \bar "|."
+@end lilypond
+
+@cindex repeats, with ties
+@cindex alternative endings, with ties
+@cindex ties, in repeats
+@cindex ties, alternative endings
@funindex \repeatTie
Ties may be added to a second ending:
@end lilypond
@snippets
-
-@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+@lilypondfile[verbatim,quote,texidoc,doctitle]
{shortening-volta-brackets.ly}
-@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+@lilypondfile[verbatim,quote,texidoc,doctitle]
{adding-volta-brackets-to-additional-staves.ly}
-@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+@lilypondfile[verbatim,quote,texidoc,doctitle]
{setting-the-double-repeat-default-for-volte.ly}
+@cindex repeats, bar numbers letters
+@cindex repeats, alternative bar numbers
+
+@lilypondfile[verbatim,quote,texidoc,doctitle]
+{alternative-bar-numbering.ly}
+
@seealso
Music Glossary:
@rglos{repeat},
Notation Reference:
@ref{Bar lines},
@ref{Modifying context plug-ins},
+@ref{Modifying ties and slurs},
@ref{Time administration}.
Snippets:
@rinternals{VoltaRepeatedMusic},
@rinternals{UnfoldedRepeatedMusic}.
-
@knownissues
-
@cindex repeat, ambiguous
@cindex nested repeat
@cindex repeat, nested
@cindex repeat and measure number
@cindex timing information and repeats
@cindex measure number and repeats
-@cindex repeat and slur
-@cindex slur and repeat
+@cindex repeats and slur
+@cindex slur and repeats
+@cindex glissandi and repeats
+@cindex repeats and glissandi
Slurs that span from a @code{\repeat} block into an
-@code{\alternative} block will only work for the first alternate
-ending. Also, slurs cannot wrap around from the end of one
+@code{\alternative} block will only work for the first alternative
+ending. The visual appearance of a continuing slur in other
+alternative blocks may be simulated with @code{\repeatTie} if the
+slur extends into only one note in the alternative block, although
+this method does not work in @code{TabStaff}. Other methods which
+may be tailored to indicate continuing slurs over several notes in
+alternative blocks, and which also work in @code{TabStaff} contexts,
+are shown in @ref{Modifying ties and slurs}.
+
+Also, slurs cannot wrap around from the end of one
alternative back to the beginning of the repeat.
+Glissandi that span from a @code{\repeat} block into an
+@code{\alternative} block will only work for the first alternative
+ending. The visual appearance of a continuing glissando in other
+alternative blocks may be indicated by coding a glissando starting
+on a hidden grace note. For an example, see
+@qq{Extending glissandi across repeats} under Selected Snippets
+in @ref{Glissando}.
+
If a repeat that begins with an incomplete measure has an
@code{\alternative} block that contains modifications to the
@code{measureLength} property, using @code{\unfoldRepeats} will
voltaAdLib = \markup { 1. 2. 3... \text \italic { ad lib. } }
\relative c'' {
c1
- \set Score.repeatCommands = #(list(list 'volta voltaAdLib) 'start-repeat)
+ \set Score.repeatCommands =
+ #(list(list 'volta voltaAdLib) 'start-repeat)
c4 b d e
\set Score.repeatCommands = #'((volta #f) (volta "4.") end-repeat)
f1
@snippets
-@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+@lilypondfile[verbatim,quote,texidoc,doctitle]
{printing-a-repeat-sign-at-the-beginning-of-a-piece.ly}
-
@seealso
Notation Reference:
@ref{Bar lines},
@unnumberedsubsubsec Written-out repeats
@cindex written-out repeats
-@cindex repetitious music
@cindex repeats, written-out
-@cindex repeat, unfold
-@cindex unfold music
+@cindex repeats, unfold
+@cindex repeats, alternative
@cindex unfold repeat
-@cindex unfold repeat with alternate endings
-@cindex unfold music with alternate endings
-@cindex alternate ending in written-out repeats
+@cindex unfold repeat, alternate endings
+@cindex alternate repeats
+@cindex alternate endings, repeats
@funindex unfold
-By using the @code{unfold} command, repeats can be used to simplify
-the writing out of repetitious music. The syntax is
+By using the @code{unfold} command, repeats can be used to simplify the
+writing out of repetitious music. The syntax is
@example
\repeat unfold @var{repeatcount} @var{musicexpr}
c1
@end lilypond
+In some cases, especially in a @code{\relative} context, the
+@code{\repeat unfold} function is not the same as writing out the
+music expression multiple times. E.g,
+
+@example
+\repeat unfold 2 @{ a'4 b c @}
+@end example
+
+is not equivalent to
+
+@example
+a'4 b c | a'4 b c
+@end example
+
Unfold repeats can be made with alternate endings.
@lilypond[verbatim,quote,relative=2]
c1
@end lilypond
-If there are more alternate endings than repeats then the first
-alternatives are applied, LilyPond will ignore the remaining
-alternatives which will not be printed.
+If there are more alternate endings than repeats then only the first
+alternatives are applied. The remaining alternatives will be ignored
+and not printed.
@lilypond[verbatim,quote,relative=2]
\repeat unfold 2 { c4 d e f }
c1
@end lilypond
+Chord constructs can be repeated by the chord repetition symbol
+@code{q}. See @ref{Chord repetition}.
-@warning{If you include @code{@bs{}relative} inside a
-@code{@bs{}repeat} without explicitly instantiating the
-@code{Voice} context, extra (unwanted) staves will appear. See
-@rprogram{An extra staff appears}.}
-
+@warning{If you include @code{@bs{}relative} inside a @code{@bs{}repeat}
+without explicitly instantiating the @code{Voice} context, extra
+(unwanted) staves will appear. See @rprogram{An extra staff appears}.}
@seealso
+Notation Reference:
+@ref{Chord repetition}.
+
Snippets:
@rlsr{Repeats}.
Patterns that are shorter than one measure are replaced by slashes.
@lilypond[verbatim,quote,relative=2]
+\repeat percent 4 { c128 d e f }
+\repeat percent 4 { c64 d e f }
+\repeat percent 5 { c32 d e f }
+\repeat percent 4 { c16 d e f }
\repeat percent 4 { c8 d }
\repeat percent 4 { c4 }
\repeat percent 2 { c2 }
@end lilypond
-Patterns of one or two measures are replaced by percent-like signs.
+Patterns of one or two measures are replaced by percent-like symbols.
@lilypond[verbatim,quote,relative=2]
-\repeat percent 3 { c4 d e f }
-\repeat percent 4 { c2 d }
+\repeat percent 2 { c4 d e f }
+\repeat percent 2 { c2 d }
+\repeat percent 2 { c1 }
@end lilypond
@lilypond[verbatim,quote,relative=2]
\repeat percent 3 { c4 d e f | c2 g' }
@end lilypond
+Patterns that are shorter than one measure but contain mixed durations
+use a double-percent symbol.
+
+@lilypond[verbatim,quote,relative=2]
+\repeat percent 4 { c8. <d f>16 }
+\repeat percent 2 { \times 2/3 { r8 c d } e4 }
+@end lilypond
+
@snippets
-@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+@lilypondfile[verbatim,quote,texidoc,doctitle]
{percent-repeat-counter.ly}
-@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+@lilypondfile[verbatim,quote,texidoc,doctitle]
{percent-repeat-count-visibility.ly}
-@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+@lilypondfile[verbatim,quote,texidoc,doctitle]
{isolated-percent-repeats.ly}
-
@seealso
Music Glossary:
@rglos{percent repeat},
Internals Reference:
@rinternals{RepeatSlash},
+@rinternals{RepeatSlashEvent},
+@rinternals{DoubleRepeatSlash},
@rinternals{PercentRepeat},
+@rinternals{PercentRepeatCounter},
+@rinternals{PercentRepeatedMusic},
+@rinternals{Percent_repeat_engraver},
+@rinternals{DoublePercentEvent},
@rinternals{DoublePercentRepeat},
@rinternals{DoublePercentRepeatCounter},
-@rinternals{PercentRepeatCounter},
-@rinternals{PercentRepeatedMusic}.
-
-
-@knownissues
-
-Only three kinds of percent repeats are supported: a single slash
-representing a single beat (regardless of the duration of the repeated
-notes); a single slash with dots representing one full measure; and
-two slashes with dots crossing a bar line representing two full
-measures. Neither multiple slashes representing single beat repeats
-consisting of sixteenth or shorter notes, nor two slashes with dots
-representing single beat repeats consisting of notes of varying
-durations, are supported.
+@rinternals{Double_percent_repeat_engraver},
+@rinternals{Slash_repeat_engraver}.
@node Tremolo repeats
@snippets
-@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+@lilypondfile[verbatim,quote,texidoc,doctitle]
{cross-staff-tremolos.ly}
-
@seealso
Snippets:
@rlsr{Repeats}.
@cindex tremolo, cross-staff
@cindex cross-staff tremolo
-