For 10 points, name this composer who incorportated folk songs from his native Hungary.
This composer is the namesake of a string-snapping pizzicato sound. A companion of Zoltan Kodaly [KOE-dye], he collected 153 increasingly difficult piano etudes in his Mikrokosmos, and a girl performs three "seduction dances" in his ballet The Miraculous Mandarin. A princess opens seven colored doors in his one-act opera Duke Bluebeard's Castle. For 10 points, name this composer who incorportated folk songs from his native Hungary.
This composer is the namesake of a string-snapping pizzicato sound.
Bela {Bartok} [or {Bartok Béla}]