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5.1.1 Contexts explained
Contexts are arranged hierarchically:
| Score - the master of all contexts | ||
| Top-level contexts - staff containers | ||
| Intermediate-level contexts - staves | ||
| Bottom-level contexts - voices |
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Score - the master of all contexts
This is the top level notation context. No other context can contain a Score context. By default the Score context handles the administration of time signatures and makes sure that items such as clefs, time signatures, and key-signatures are aligned across staves.
A Score context is instantiated implicitly when a
\score {…} or \layout {…} block is
processed.
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Top-level contexts - staff containers
StaffGroup
Groups staves while adding a bracket on the left side, grouping
the staves together. The bar lines of the contained staves are
connected vertically. StaffGroup only consists of a collection
of staves, with a bracket in front and spanning bar lines.
ChoirStaff
Identical to StaffGroup except that the bar lines of the
contained staves are not connected vertically.
GrandStaff
A group of staves, with a brace on the left side, grouping the staves together. The bar lines of the contained staves are connected vertically.
PianoStaff
Just like GrandStaff, but with support for instrument names
to the left of each system.
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Intermediate-level contexts - staves
Staff
Handles clefs, bar lines, keys, accidentals. It can contain
Voice contexts.
RhythmicStaff
Like Staff but for printing rhythms. Pitches are ignored;
the notes are printed on one line.
TabStaff
Context for generating tablature. By default lays the music expression out as a guitar tablature, printed on six lines.
DrumStaff
Handles typesetting for percussion. Can contain DrumVoice
VaticanaStaff
Same as Staff, except that it is designed for typesetting
a piece in gregorian style.
MensuralStaff
Same as Staff, except that it is designed for typesetting
a piece in mensural style.
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Bottom-level contexts - voices
Voice-level contexts initialise certain properties and start appropriate engravers. Being bottom-level contexts, they cannot contain other contexts.
Voice
Corresponds to a voice on a staff. This context handles the conversion of dynamic signs, stems, beams, super- and sub-scripts, slurs, ties, and rests. You have to instantiate this explicitly if you require multiple voices on the same staff.
VaticanaVoice
Same as Voice, except that it is designed for typesetting
a piece in gregorian style.
MensuralVoice
Same as Voice, with modifications for typesetting a piece in
mensural style.
Lyrics
Corresponds to a voice with lyrics. Handles the printing of a single line of lyrics.
DrumVoice
The voice context used in a percussion staff.
FiguredBass
The context in which BassFigure objects are created from
input entered in \figuremode mode.
TabVoice
The voice context used within a TabStaff context. Usually
left to be created implicitly.
CueVoice
A voice context used to render notes of a reduced size, intended primarily for adding cue notes to a staff, see Formatting cue notes. Usually left to be created implicitly.
ChordNames
Typesets chord names.
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