Watch on 123Movies. A conversation between Morton Feldman and lannis Xenakis which took place on Friday, July 4, 1986 at De Kloveniersdoelen, Middelburg, The Netherlands. The conversation was part of a five day master-class given by Morton Feldman during the Festival Nieuwe Muziek, June 19–July 6, 1986. Morton Feldman’s Trio (1980) was performed by Aki Takahashi, piano, Mifune Tsuji, violin and Tadashi Tanaka, violoncello on Thursday, July 3, 1986 at De Kloveniersdoelen, Middelburg.