What instrument did Joe, the character played by Tony Curtis in 'Some Like it Hot' play ?

Some Like It Hot is a 1959 American romantic comedy film set in 1929, directed and produced by Billy Wilder, starring Marilyn Monroe, Tony Curtis, and Jack Lemmon. The plot is based on a screenplay by Billy Wilder and Michael Logan from the French film Fanfare of Love. The film is about two musicians who dress in drag in order to escape from mafia gangsters whom they witnessed commit a crime inspired by the Saint Valentine's Day Massacre. The film was produced in black and white, even though color films were increasing in popularity.

It is February 1929 in the city of Chicago, during the era of prohibition. Joe (Tony Curtis) is an irresponsible jazz saxophone player, gambler and ladies' man; his friend Jerry (Jack Lemmon) is a sensible jazz double-bass player; both are working in a speakeasy (disguised as a funeral home) owned by mob gangster "Spats" Colombo (George Raft). When the joint is raided by the police after being tipped off by informant "Toothpick" Charlie (George E. Stone), Joe and Jerry flee—only to accidentally witness Spats and his henchmen exacting his revenge on "Toothpick" and his own gang (inspired by the real-life Saint Valentine's Day Massacre). Penniless and in a mad rush to get out of town, the two musicians take a job with Sweet Sue (Joan Shawlee) and her Society Syncopators, an all-female band headed to Miami. Disguised as women and renaming themselves Josephine and Daphne, they board a train with the band and their male manager, Bienstock.