附註:For piano.
Parallel titles of 1st work on container: Douze etudes pour piano = Twelve etudes for piano = Zwolf Etuden fur Klavier = Dodici studi per pianoforte.
Compact disc.
Notes by Paolo Petazzi, in English translation (6 p. : ports.) inserted in container.
Durations: ca. 19:00 (Etudes, book 1); ca. 24:00 (Etudes, book 2); 10:42) (Sonata).
