6 Beat grouping within a measure is controlled by the context property
7 @code{beatStructure}. Values of @code{beatStructure} are
8 established for many time signatures in
9 @file{scm/time-signature-settings.scm}. Values of @code{beatStructure}
10 can be changed or set with @code{\set}.
11 Alternatively, @code{\time} can be used to both
12 set the time signature and establish the beat structure.
13 For this, you specify the internal grouping of beats in a measure
14 as a list of numbers (in Scheme syntax) before the time signature.
16 @code{\time} applies to the @code{Timing} context, so it will not
17 reset values of @code{beatStructure} or @code{baseMoment} that are set
18 in other lower-level contexts, such as @code{Voice}.
20 If the @code{Measure_grouping_engraver} is included
21 in one of the display contexts, measure grouping signs will be
22 created. Such signs ease reading rhythmically complex modern music.
23 In the example, the 9/8 measure is grouped in two different
24 patterns using the two different methods, while the 5/8 measure
25 is grouped according to the default setting in
26 @file{scm/time-signature-settings.scm}:
28 doctitle = "Conducting signs, measure grouping signs"
33 \new Voice \relative c'' {
35 g8 g d d g g a( bes g) |
36 \set Timing.beatStructure = #'(2 2 2 3)
37 g8 g d d g g a( bes g) |
39 g8 g d d g g a( bes g) |
46 \consists "Measure_grouping_engraver"