ECM: 78118-21508-2. The 1st-2nd works for viola ; the 3rd and 6th works for clarinet, viola, and piano ; the 4th work for viola and piano ; the 5th work for clarinet and piano. ECM: ECM 1508. Recorded in Kammermusiksaal Beethovenhaus, Bonn, Aug. 1992, May 1994, and Sept. 1994. Kim Kashkashian, viola (1st-4th, 6th works) ; Eduard Brunner, clarinet (3rd, 5th-6th works) ; Robert Levin, piano (3rd-6th works).