Romanian Folk Dances are a set of movements which take up to five minutes to perform; the melodies were original compositions of Bartok.
This set of dances consists of six movements and, according to the composer, it should take four minutes and three seconds to perform, but most professional pianists take up to five minutes. Aside from the version Bartok wrote for a small orchestral ensemble, some of Bartok's friends wrote adaptations or transcriptions of this piece for several different ensembles. 
