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)