Type of love song popular in 15th and 16th cents. named after poet Leonardo Giustiniani (c. 1385–1446). After about 1560 name was applied to type of villanella in which text is about three men who still desire sexual encounters but are too old to find them except with prostitutes. Coll. pubd. by Scotto 1570 incl. examples by A. Gabrieli and Merulo.