Note:  Do not rely on this information. It is very old.

Improvisatori

Improvisatori and Improvisatrices, a class of Italian poets and poetesses who possess the gift of immediately composing verses on any subject proposed, often singing and playing on the lute or some other instrument at the same time. The art is said to have been invented by Petrarch, and the Italians often amuse themselves in this manner at the present day.