intransitive. To speak extempore. Also, to compose and perform music off-hand; to improvise.

intransitive. To compose and perform music, poetry, drama, etc., spontaneously or without preparation; to speak or perform extemporaneously.

to compose off-hand; to improvise, extemporize.

intr. To play fantasias; to extemporize. rare (but often in Carlyle).

transitive. Music slang (chiefly Jazz). To improvise (a melody, accompaniment, song, etc.); to perform in an improvisatory manner. Also intransitive.

intransitive. To speak or perform extempore or without prior rehearsal; to improvise actions, words, music, etc., esp. in the course of a stage or…

transitive and intransitive. slang. (originally Jazz) and colloquial. To improvise (esp. music); to speak or write without preparation. Also in to bu…

intransitive. To play in a ‘jam’ or ‘jam session’ (see jam, n.1 3); to extemporize. Also transitive, to improvise (a tune, etc.). colloquial…

transitive and intransitive. Chiefly Jazz. To play or sing (a piece of music) in a tentative, playful, or improvisatory way; (also) to play an…