Synonyms for Excerpt:

n.

flourish, descant, cadence, crescendo, arpeggio, counterpoint, coda, breakbeat, accompaniment. citation; something taken from a whole (noun)
selection, quotation, passage, extract.
communication (noun)
extract, selection.
excerpt (noun)
take out, selection, extract.
selection (noun)
quotation, passage, citation.
synopsis (noun)
summary, outline, resume, digest, abstract, sketch, synopsis, abridgment, prospectus, compendium, overview, condensation, precis, epitome.

v.

cognition (verb)
extract, take out.

Other synonyms:

quotation, arpeggio, descant, accompaniment, cadence, counterpoint, breakbeat. flourish, crescendo, coda, citation. Other relevant words:
citation, quotation, crescendo, take out, selection, passage, cadence, breakbeat, flourish, counterpoint, descant, coda, arpeggio, accompaniment, extract.