Ros ‧ si ‧ ni, Gio ‧ ac ‧ chi ‧ no /rɒˈsiːni $ rəʊ-, ˌdʒəʊəˈkiːnəʊ/ BrE AmE
(1792–1868) an Italian ↑ composer most famous for writing many ↑ opera s , especially The Barber of Seville (1816). The ↑ overture to his opera William Tell (1829) is very well known, and was used as the ↑ signature tune to the 1950s television programme The Lone Ranger .