cadenza

n. final flourish in a solo (Music)

In music, a cadenza (Italian for cadence) is, generically, an improvised or written-out ornamental passage played or sung by a soloist or soloists, usually in a "free" rhythmic style, and often allowing for virtuosic display. (Randel 1986)Cadenza often refers to a portion of a concerto in which the orchestra stops playing, leaving the soloist to play alone in free time (without a strict, regular pulse) and can be written or improvised, depending on what the composer specifies. This normally occurs near the end of the first movement, though it can be at any point in a concerto; an example is Tchaikovsky's First Piano Concerto, where in the first five minutes a cadenza is used. It usually is the most elaborate part that the solo instrument plays during the whole piece. At the end of the cadenza, the orchestra re-enters, and generally finishes off the movement on their own, or, less often, with the solo instrument.
See more at Wikipedia.org...

Noun
1. a brilliant solo passage occuring near the end of a piece of music
(hypernym) passage, musical passage

n. cadence, intonation, rhythm; cadenza, final flourish in a solo (Music)

v. give a musical rhythm, impart a cadence

(n.)
A parenthetic flourish or flight of ornament in the course of a piece, commonly just before the final cadence.