extempore

By then, Nehru had gained a reputation as a formidable orator, delivering extempore speeches that ranged effortlessly across politics, science, art, and ethics.

And whenever he performed during the show - including an extempore rap performance while inhaling helium from a balloon - fans would celebrate on social media for days.

It was his ability to speak extempore with an eloquence and inventiveness unrivaled in 17th-century Paris.

On stage, James could stretch I’d Rather Go Blind out to 10 minutes of extempore soul-bearing, but the simple, concise studio original is pretty much perfect.

In 1974, when Mr. Braufman was deeply embedded on New York’s radical free-jazz scene, he recorded “Valley of Search,” a record of darkly melodic improvising and portentous incantations and extempore group explosions.