The 1st and 6th works originally for orchestra, arr. for 2 pianos; the 2nd, for piano, 4 hands; the 3rd and 5th, for piano solo; the 4th, originally for piano, arr. for piano, 4 hands. Compact disc. Program notes by Luciano Berio in English and French ([21] p. : ports.) inserted in container. Recorded May 2006, IRCAM (1st-5th works) and Sept. 2006, Gustav Mahler Musiksaal, Grand Hotel Toblach (6th work). Katia & Marielle Labèque, piano(s).