Cowell, Henry - recordings Cowell, Henry. Ostinato Pianissimo. CBS Records/CBS, Inc., P8-19694, 1988. Cowell, Henry. Symphony No.11. Columbia Masterworks, ML 5039, U.N.C.G. LP #946. Cowell, Henry. Toccanta. Columbia Masterworks, ML 4986, U.N.C.G. LP #958. 10/19/88