 In 1905 he played piano in the silent film theatre "La Caricatura", and in 1909 directed the orchestra of the "Politeama Habanero" theatre, which mostly showed zarzuelas.Later he joined the company of Regino López at the "Teatro Cubano".In 1925 Grenet founded a jazz band which played in the cabaret "Montmatre" and the "Jockey Club".