obbligato
obb·li·gato
noun
1.
a persistent but subordinate motif
Origin
From Italian obbligato. Piecewise doublet of obliged.
Related words
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.