from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Not to be left out; indispensable. Used of an accompaniment that is an integral part of a piece.
- n. An obbligato accompaniment.
from The Century Dictionary and Cyclopedia
- In music, indispensable; so important that it cannot be omitted: especially used of accompaniments of independent value.
- n. An accompaniment, whether for a solo or a concerted instrument, which is of independent importance; especially, an instrumental solo accompanying a vocal piece.
- n. Also spelled obligato.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a part of the score that must be performed without change or omission
- n. a persistent but subordinate motif
Italian, past participle of obbligare, to obligate, from Latin obligāre, to oblige; see oblige.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Italian obbligato. (Wiktionary)