4 Etudes de rythme (with analysis by the composer Piano). By Olivier Messiaen (1908-1992). For Piano. Editions Durand. Advanced. Softcover. 62 pages. Editions Durand #DF1584800. Published by Editions Durand (HL.50564933).
Composed in 1949-1950, these études represent Messiaens' period of composition when he focused on rhythm and duration. The score includes a very detailed analysis by the composer. Advanced level.