250 piano pieces for Beethoven International composition project : initiated by Susanne Kessel, Bonn von Altman, John 1949-, Barlow, Clarence 1945-, Benhouhou, Smaïl, Bertelsmeier, Birke J. 1981-, Brenner, Daniel Elias 1981-, Claman, David, Dechant, Hermann 1939-, Dillen, Oscar van 1958-, Dragićević, Sascha Janko 1969-, Dziwis, Damian T. 1986-, Flammer, Ernst Helmuth 1949-, Floros, Marc-Aurel 1971-, Huber, Nicolaus A. 1939-, Ingólfsson, Atli 1962-, Jahnel, Benedikt 1980-, Joachim, Carlotta Rabea 1995-, Kranemann, Eberhard 1945-, Krüger, Matthias S. 1980-, Maulella, Gustavo, Mittmann, Jörg-Peter 1962-, Nemtsov, Sarah 1980-, Nini, Odeya, Omel'čuk, Oxana 1975-, Palumbo, Vito 1972-, Rohloff, Steingrimur 1971-