n. Spirit, animation; especially, in music, in the expression con brio, spiritedly.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. quality of being active or spirited or alive and vigorous
Word Usage
"“Santa Monica cocktail parties” gets the job done, but his usual brio is lacking, much like a worn-out band performing a medley of hit songs from 40 years ago."