The \tag
command marks music expressions with a name. These
tagged expressions can be filtered out later. With this mechanism it
is possible to make different versions of the same music source.
In the following example, we see two versions of a piece of music, one for the full score, and one with cue notes for the instrumental part
c1 \relative c' << \tag #'part << R1 \\ { \set fontSize = #-1 c4_"cue" f2 g4 } >> \tag #'score R1 >> c1
The same can be applied to articulations, texts, etc.: they are made by prepending
-\tag #your-tag
to an articulation, for example,
c1-\tag #'part ^4
This defines a note with a conditional fingering indication.
By applying the remove-tag
function, tagged expressions can be
filtered. For example,
\simultaneous { the music \apply #(remove-tag 'score) the music \apply #(remove-tag 'part) the music }
would yield
The argument of the \tag
command should be a symbol, or a list
of symbols, for example,
\tag #'(original-part transposed-part) ...
Examples: input/regression/tag-filter.ly.
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This page is for LilyPond-2.2.6 (stable-branch). |