» For the 1996 movie, see Microcosmos Béla Bartók's composition for piano Mikrokosmos Sz. 107, BB 105 consists of 153 progressive pieces in six volumes written between 1926 and 1939. The individual pieces progress from very easy and simple beginner etudes to very difficult advanced technical displays, and are used in modern piano lessons and education. In total, according to Bartók, the piece "appears as a synthesis of all the musical and technical problems which were treat… (More on Mikrokosmos)