@end example
@noindent
-where @var{musicexpr} is a music expression. Alternate endings can be
-produced using @code{\alternative}. In order to delimit the alternate
-endings, the group of alternatives must be enclosed in a set of
-braces. If there are more repeats than there are alternate endings,
-the earliest repeats are given the first alternative.
+where @var{musicexpr} is a music expression.
-Normal repeats without alternate endings:
+A single repeat without an alternate ending:
@lilypond[verbatim,quote,relative=2]
\repeat volta 2 { c4 d e f }
\repeat volta 2 { d4 e f g }
@end lilypond
-Normal repeats with alternate endings:
+Alternative endings can be produced using @code{\alternative}. Each
+group of alternatives must be themselves, enclosed in a set of braces.
+
+@example
+\repeat volta @var{repeatcount} @var{musicexpr}
+\alternative @{
+ @{ @var{musicexpr} @}
+@}
+@end example
+
+@noindent
+where @var{musicexpr} is a music expression.
+
+If there are more repeats than there are alternate endings, the earliest
+repeats are given the first alternative.
+
+A single repeat with one alternate ending:
+
+@lilypond[verbatim,quote,relative=2]
+\repeat volta 2 { c4 d e f }
+\alternative {
+ { c2 e }
+ { f2 g }
+}
+c1
+@end lilypond
+
+A single repeat with more than one alternate ending:
@lilypond[verbatim,quote,relative=2]
\repeat volta 4 { c4 d e f }
\alternative {
- { d2 e }
+ { c2 e }
{ f2 g }
}
c1
@end lilypond
+Multiple repeats with more than one alternate ending:
+
+@lilypond[verbatim,quote,relative=2]
+\repeat volta 3 { c4 d e f }
+\alternative {
+ { c2 e }
+ { f2 g }
+ { a2 g }
+}
+c1
+@end lilypond
+
@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
@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
{adding-volta-brackets-to-additional-staves.ly}
+@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+{setting-the-double-repeat-default-for-volte.ly}
@seealso
Music Glossary:
@warning{These methods are only used for displaying unusual repeat
constructs, and may produce unexpected behavior. In most cases,
-repeats should be created using the standard @code{\\repeat} command
+repeats should be created using the standard @code{@bs{}repeat} command
or by printing the relevant bar lines. For more information, see
@ref{Bar lines}.}
the number of times @var{musicexpr} is repeated.
@lilypond[verbatim,quote,relative=2]
+\repeat unfold 2 { c4 d e f }
c1
+@end lilypond
+
+Unfold repeats can be made with alternate endings.
+
+@lilypond[verbatim,quote,relative=2]
\repeat unfold 2 { c4 d e f }
+\alternative {
+ { c2 g' }
+ { c,2 b }
+}
c1
@end lilypond
-Unfold repeats can be made with alternate endings. If there are
-more repeats than there are alternate endings, the first
-alternative ending is applied to the earliest endings.
+If there are more repeats than there are alternate endings, the first
+alternative is applied multiple times until the remaining alternatives
+make up the total number of repeats.
@lilypond[verbatim,quote,relative=2]
+\repeat unfold 4 { c4 d e f }
+\alternative {
+ { c2 g' }
+ { c,2 b }
+ { e2 d }
+ }
c1
-\repeat unfold 2 { g4 f e d }
+@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.
+
+@lilypond[verbatim,quote,relative=2]
+\repeat unfold 2 { c4 d e f }
+\alternative {
+ { c2 g' }
+ { c,2 b }
+ { e2 d }
+}
+c1
+@end lilypond
+
+It is also possible to nest multiple @code{unfold} functions (with or
+without alternate endings).
+
+@lilypond[verbatim,quote,relative=2]
+\repeat unfold 2 {
+ \repeat unfold 2 { c4 d e f }
\alternative {
- { cis2 g' }
- { cis,2 b }
+ { c2 g' }
+ { c,2 b }
}
+}
c1
@end lilypond
+
@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
@subsection Short repeats
This section discusses how to input short repeats. Short repeats can
-take two basic forms: repeats of a single note to two measures,
-represented by slashes or percent signs; and tremolos.
+take two forms: slashes or percent signs to represent repeats of a
+single note, a single measure or two measures, and tremolos otherwise.
@menu
* Percent repeats::
@funindex \repeat percent
@funindex percent
-Repeated short patterns of notes are supported. The music is printed
-once, and the pattern is replaced with a special sign. Patterns that
-are shorter than one measure are replaced by slashes, and patterns of
-one or two measures are replaced by percent-like signs. The syntax is
+Repeated short patterns are printed once, and the repeated pattern
+is replaced with a special sign.
+
+The syntax is
@example
@code{\repeat percent @var{number} @var{musicexpr}}
@noindent
where @var{musicexpr} is a music expression.
+Patterns that are shorter than one measure are replaced by slashes.
+
@lilypond[verbatim,quote,relative=2]
+\repeat percent 4 { c8 d }
\repeat percent 4 { c4 }
-\repeat percent 2 { b4 a g f }
-\repeat percent 2 { c2 es | f4 fis g c | }
+\repeat percent 2 { c2 }
+@end lilypond
+
+Patterns of one or two measures are replaced by percent-like signs.
+
+@lilypond[verbatim,quote,relative=2]
+\repeat percent 3 { c4 d e f }
+\repeat percent 4 { c2 d }
+@end lilypond
+
+@lilypond[verbatim,quote,relative=2]
+\repeat percent 3 { c4 d e f | c2 g' }
@end lilypond
@snippets
projects / lilypond.git / blobdiff