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3.4.1 Extracting fragments of music
It is possible to output one or more fragments of a score by defining
the explicit location of the music to be extracted within the
\layout block of the input file using the clip-regions
function, and then running LilyPond with the ‘-dclip-systems’
option;
\layout {
clip-regions
= #(list
(cons
(make-rhythmic-location 5 1 2)
(make-rhythmic-location 7 3 4)))
}
This example will extract a single fragment of the input file
starting after a half-note duration in fifth measure
(5 1 2) and ending after the third quarter-note in the
seventh measure (7 3 4).
Additional fragments can be extracted by adding more pairs of
make-rhythmic-location entries to the clip-regions list in
the \layout block.
By default, each music fragment will be output as a separate EPS
file, but other formats such as PDF or PNG can also be
created if required. The extracted music is output as if had been
literally ‘cut’ from the original printed score so if a fragment runs
over one or more lines, a separate output file for each line will be
generated.
See also
Notation Reference:
The \layout block.
Application Usage: Command-line usage.
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