Béla (ˈbeːlɔ). 1881--1945, Hungarian composer, pianist, and collector of folk songs, by which his music was deeply influenced. His works include six string quartets, three piano concertos, several piano pieces including Mikrokosmos (1926--37), ballets (including The Miraculous Mandarin, 1919), and the opera Bluebeard's Castle (produced 1918)