. . "Quartets (Pianos (2), percussion, violin)" . . . . . . "Piano music" . . . . "One to the fifth power" . . . . "2 to the sixth power" . . . "1 to the fifth power" . . . . "Two^6 ; Four no3" . . . . "Two to the sixth power" . . . "The number pieces. I" . "The number pieces 1" . . "4 to the third power" . "Four to the third power" . "The number pieces. 1" . .