Many of Enescu's works were influenced by Romanian folk music, his most popular compositions being the two "Romanian Rhapsodies" (1901–02), the opera "Œdipe" (1936), and the suites for orchestra. He also wrote five symphonies (two of them unfinished), a symphonic poem "Vox maris", and much chamber music (three sonatas for violin and piano, two for cello and piano, a piano trio, two string quartets and two piano quartets, a wind decet (French, "dixtuor"), an octet for strings, a piano quintet, and a chamber symphony for twelve solo instruments). A young Ravi Shankar recalled in the 1960s how Enescu, who had developed a deep interest in Oriental music, rehearsed with Shankar's brother Uday Shankar and his musicians. Around the same time, Enescu took the young Yehudi Menuhin to the Colonial Exhibition in Paris, where he introduced him to the Gamelan Orchestra from Indonesia.