Se vuol ballare
The cavatina "" is an aria for baritone or bass from the first act of the opera "The Marriage of Figaro" by Wolfgang Amadeus Mozart. The libretto was written by Lorenzo Da Ponte based on a stage comedy by Pierre Beaumarchais, La folle journée, ou le Mariage de Figaro (1784). The Italian title means "If you want to dance".
The Marriage of Figaro
The opera was the first of three collaborations between Mozart and Da Ponte; their later collaborations were "Don Giovanni" and "Così fan tutte". It was Mozart who originally selected Beaumarchais's play and brought it to Da Ponte, who turned it into a libretto in six weeks, rewriting it in poetic Italian and removing all of the original's political references. In particular, Da Ponte replaced Figaro's climactic speech against inherited nobility with an equally angry aria against unfaithful wives. Contrary to the popular myth, the libretto was approved by the Emperor before any music was written by Mozart.