in Snippets - LilyPond

Rhythms 56
mensural
neomensural
classical
default
Reverting default beam endings
To typeset beams grouped 3-4-3-2 in 12/8 it is necessary first to override the default beam
endings in 12/8, and then to set up the new beaming endings:
\relative c'' {
\time 12/8
}
% Default beaming
a8 a a a a a a a a a a a
% Set new values for beam endings
\set Score.beatStructure = #'(3 4 3 2)
a8 a a a a a a a a a a a
12
8
Rhythmic slashes
In “simple” lead-sheets, sometimes no actual notes are written, instead only “rhythmic patterns”
and chords above the measures are notated giving the structure of a song. Such a feature is for
example useful while creating/transcribing the structure of a song and also when sharing lead
sheets with guitarists or jazz musicians. The standard support for this using \repeat percent
is unsuitable here since the first beat has to be an ordinary note or rest. This example shows two
solutions to this problem, by redefining ordinary rests to be printed as slashes. (If the duration
of each beat is not a quarter note, replace the r4 in the definitions with a rest of the appropriate
duration).
% Macro to print single slash
rs = {
\once \override Rest #'stencil = #ly:percent-repeat-item-interface::beat-slash
\once \override Rest #'thickness = #0.48
\once \override Rest #'slope = #1.7
r4
}