La valse, a choreographic poem for orchestra, is a work written by Maurice Ravel between February 1919 and 1920; it was first performed on 12 December 1920 in Paris. It was conceived as a ballet but is now more often heard as a concert work. Apart from the two-piano arrangement, which was first publicly performed by Ravel and Alfredo Casella, Ravel also transcribed this work for one piano. The solo piano transcription is infrequently performed due to its difficulty. Lucien Garban produced a transcription for piano four hands in 1920.