The Two Romanian Folk Dances, Op. 8a (Két Román Tánc in Hungarian) are a piano work written by Bartók, based on Romanian folk music. Written in 1910, they date from the beginning of his interest in folk music — his first work showing strong folk influence, the String Quartet No. 1, is from just two years before. The first dance (Allegro vivace) is rhapsodic in form, though with a recurrent main theme. The second dance’s theme is loosely based on a Romanian jeering song.