Definition of "piece of music" [piece of music]

• A musical work that has been created (noun)

WordNet. Princeton University. 2010.

• "A short piece of music set to Latin words, and sung instead of, or immediately after, the Offertorium, or as a detached number in extra-liturgical functions."
• "We have many musical instruments, particularly drums of different kinds, a piece of music which resembles a guitar, and another much like a stickado."
• "—their voices sounded, wrote one soldier, more musical than the most beautiful piece of music Handel ever wrote."