LilyPond Beginnershandleiding

Hoofdstuk 4: Tweaking output 113
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4.4.3 Outside-staff objects
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Outside-staff objects are automatically placed to avoid collisions. There are several ways to
override the automatic placement if the positioning is not optimum.
The outside-staff-priority property
Objects with the lower value of the outside-staff-priority property are placed nearer to
the staff, and other outside-staff objects are then raised as far as necessary to avoid collisions.
The outside-staff-priority is defined in the grob-interface and so is a property of all
layout objects. By default it is set to #f for all within-staff objects, and to a numerical value
appropriate to each outside-staff object when the object is created. The following table shows
the default numerical values for some of the commonest outside-staff objects.
Note the unusual names for some of the objects: spanner objects are automatically created
to control the vertical positioning of grobs which (might) start and end at different musical
moments, so changing the outside-staff-priority of the underlying grob will have no effect.
For example, changing outside-staff-priority of the Hairpin object will have no effect on the
vertical positioning of hairpins – you must change outside-staff-priority of the associated
DynamicLineSpanner object instead. This override must be placed at the start of the spanner,
which might include several linked hairpins and dynamics.
Layout Object Priority Controls position of:
RehearsalMark 1500 Rehearsal marks
MetronomeMark 1000 Metronome marks
VoltaBracketSpanner 600 Volta brackets
TextScript 450 Markup text
MultiMeasureRestText 450 Markup text over full-bar
rests
OttavaBracket 400 Ottava brackets
TextSpanner 350 Text spanners
DynamicLineSpanner 250 All dynamic markings
BarNumber 100 Bar numbers
TrillSpanner 50 Spanning trills
Here is an example showing the default placement of some of these.
% Set details for later Text Spanner
\override TextSpanner.bound-details.left.text
= \markup { \small \bold Slower }
% Place dynamics above staff
\dynamicUp
% Start Ottava Bracket
\ottava #1
c'4 \startTextSpan
% Add Dynamic Text and hairpin
c4\pp\<
c4
% Add Text Script
c4^Text |
c4 c
% Add Dynamic Text and terminate hairpin
c4\ff c \stopTextSpan |
% Stop Ottava Bracket
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