In 1975 vocalist Antonella Ruggiero and drummer Giancarlo Golzi joined Jet , resulting in a new band : Matia Bazar . In a six-year span , Cassano composed many of their hits , namely '' Stasera ... che sera ! '' ( 1975 ) , '' Per un ' ora d'amore '' ( 1975 ) , '' Cavallo bianco '' ( 1975 ) , '' Solo tu '' ( 1977 ) , '' ... e dirsi ciao '' - the winning song of the Sanremo Music Festival 1978 , '' Raggio di luna '' ( the Italian entry for the Eurovision Song Contest 1979 ) and '' C ' è tutto un mondo intorno '' ( 1979 ) . In 1981 Cassano decided to leave Matia Bazar to pursue other projects
Eurovision Song Contest 1979
Eurovision Song Contest 1979
Piero Cassano