@snippets
-@c TODO Replace by snippet called "Changing the time signature without affecting the beaming"
-@c Submitted to LSR 2 Nov 08
-
-The @code{\time} command sets the properties
-@code{timeSignatureFraction}, @code{beatLength}, @code{beatGrouping}
-and @code{measureLength} in the @code{Timing} context, which is
-normally aliased to @code{Score}. Changing the value of
-@code{timeSignatureFraction} causes the new time signature symbol
-to be printed without changing any of the other properties:
-
-@lilypond[quote,verbatim,relative=2]
-\time 3/4
-a16 a a a a a a a a a a a
-% Change time signature symbol but keep 3/4 beaming
-% due to unchanged underlying time signature
-\set Score.timeSignatureFraction = #'(12 . 16)
-a16 a a a a a a a a a a a
-\time 12/16
-% Lose 3/4 beaming now \time has been changed
-a16 a a a a a a a a a a a
-@end lilypond
+@lilypondfile[verbatim,lilyquote,ragged-right,texidoc,doctitle]
+{changing-the-time-signature-without-affecting-the-beaming.ly}
@cindex compound time signatures
@cindex time signature, compound
@lilypondfile[verbatim,lilyquote,ragged-right,texidoc,doctitle]
{specifying-context-with-beatgrouping.ly}
-
-@c Added to input/new 3 Nov 08
-@c TODO When available, change to:
-@ignore
@lilypondfile[verbatim,lilyquote,ragged-right,texidoc,doctitle]
{using-beatlength-and-beatgrouping.ly}
-@end ignore
-
-@c start new snippet
-The property @code{measureLength} determines where bar lines
-should be inserted and, with @code{beatLength} and
-@code{beatGrouping}, how automatic beams should be generated
-for beam durations and time signatures for which no beam-ending
-rules are defined. This example shows several ways of controlling
-beaming by setting these properties. The explanations are shown
-as comments in the code.
-
-@lilypond[quote,verbatim,relative=2]
-\time 3/4
-% The default in 3/4 time is to beam in three groups
-% each of a quarter note length
-a16 a a a a a a a a a a a
-
-\time 12/16
-% No auto-beaming is defined for 12/16
-a16 a a a a a a a a a a a
-
-\time 3/4
-a16 a a a a a a a a a a a
-% Change time signature symbol, but retain underlying 3/4 beaming
-\set Score.timeSignatureFraction = #'(12 . 16)
-a16 a a a a a a a a a a a
-
-% The 3/4 time default grouping of (1 1 1) and beatLength of 1/8
-% are not consistent with a measureLength of 3/4, so the beams
-% are grouped at beatLength intervals
-\set Score.beatLength = #(ly:make-moment 1 8)
-a16 a a a a a a a a a a a
-
-% Specify beams in groups of (3 3 2 3) 1/16th notes
-% 3+3+2+3=11, and 11*1/16<>3/4, so beatGrouping does not apply,
-% and beams are grouped at beatLength (1/16) intervals
-\set Score.beatLength = #(ly:make-moment 1 16)
-\set Score.beatGrouping = #'(3 3 2 3)
-a16 a a a a a a a a a a a
-
-% Specify beams in groups of (3 4 2 3) 1/16th notes
-% 3+4+2+3=12, and 12*1/16=3/4, so beatGrouping applies
-\set Score.beatLength = #(ly:make-moment 1 16)
-\set Score.beatGrouping = #'(3 4 2 3)
-a16 a a a a a a a a a a a
-@end lilypond
-@c End of snippet
@funindex subdivideBeams
<< {a8 a a a16 a a a a8 a} \\ {f4. f8 f f f} >>
@end lilypond
-@c TODO Add example using Score for multiple staves?
-@c Hmm. Not sure it works correctly. Needs more investigation.
-
@warning{If any unexpected beam behavior occurs, check the default
automatic beam settings in @file{scm/@/auto@/-beam@/.scm} for
possible interference, because the beam endings defined there will
@lilypondfile[verbatim,lilyquote,ragged-right,texidoc,doctitle]
{beam-grouping-in-7-8-time.ly}
-@ignore
-
-@c TODO Does this example add anything?
+@lilypondfile[verbatim,lilyquote,ragged-right,texidoc,doctitle]
+{reverting-default-beam-endings.ly}
-In this
-example, automatic beams can only end on a dotted quarter note
-@example
-#(override-auto-beam-setting '(end * * * *) 3 8)
-#(override-auto-beam-setting '(end * * * *) 1 2)
-#(override-auto-beam-setting '(end * * * *) 7 8)
-@end example
+@c TODO Convert to snippet called "Beam endings in Score context"
+@c Submitted to LSR 3 Nov 08
-In 4/4 time signature, this means that automatic beams could end only on
-3/8 and on the fourth beat of the measure (after 3/4, that is 2 times
-3/8, has passed within the measure).
+Beam-ending rules specified in the Score context apply to all
+staves, but can be modified at both Staff and Voice levels:
-@end ignore
-
-@lilypondfile[verbatim,lilyquote,ragged-right,texidoc,doctitle]
-{reverting-default-beam-endings.ly}
+@lilypond[quote,verbatim,relative=2]
+ \time 5/4
+ % Set default beaming for all staves
+ #(override-auto-beam-setting '(end * * 5 4) 3 8 'Score)
+ #(override-auto-beam-setting '(end * * 5 4) 7 8 'Score)
+ <<
+ \new Staff {
+ c8 c c c c c c c c c
+ }
+ \new Staff {
+ % Modify beaming for just this staff
+ #(override-auto-beam-setting '(end * * 5 4) 6 8 'Staff)
+ #(revert-auto-beam-setting '(end * * 5 4) 7 8 'Staff)
+ c8 c c c c c c c c c
+ }
+ \new Staff {
+ % Inherit beaming from Score context
+ c8 c c c c c c c c c
+ }
+ >>
+@end lilypond
@predefined
projects / lilypond.git / blobdiff