File 201 short, Penderecki piece (note: tape broke during the piece) 7 in. reel Box 20 (Tape no. 82) In: George Cacioppo papers, 1939-1985 » Sound Recordings » Other recordings
File 292 another excerpt tape 7 in. reel Box 20 (Tape no. 83) In: George Cacioppo papers, 1939-1985 » Sound Recordings » Other recordings
File 4x Low #3, piano long sustained chords 7 in. reel, could be 15 ips Box 20 (Tape no. 84) In: George Cacioppo papers, 1939-1985 » Sound Recordings » Other recordings
File Sound for K, El pn + pn 7 in. reel Box 20 (Tape no. 86) In: George Cacioppo papers, 1939-1985 » Sound Recordings » Other recordings
File Not Lilacs, Continua, Dubs 206, Music by Robert Morris 7 in. reel Box 20 (Tape no. 87) In: George Cacioppo papers, 1939-1985 » Sound Recordings » Other recordings
File C. Dub, a Timpani piece, dub of someone's recital, unidentified 7 in. reel Box 20 (Tape no. 88) In: George Cacioppo papers, 1939-1985 » Sound Recordings » Other recordings
File Upper 1-5, Morris' version of Piano Piece 11 before they were mixed 7 in. reel, 15 ips Box 20 (Tape no. 89) In: George Cacioppo papers, 1939-1985 » Sound Recordings » Other recordings
File LP 1-5 Morris' version of Piano Piece 11 before they were mixed 7 in. reel Box 20 (Tape no. 90) In: George Cacioppo papers, 1939-1985 » Sound Recordings » Other recordings
File Corrente Melody in B piano piece 7 in. reel Box 20 (Tape no. 91) In: George Cacioppo papers, 1939-1985 » Sound Recordings » Other recordings
File Sounds from an ARP synthesizer 5 in. reel Box 20 (Tape no. 94) In: George Cacioppo papers, 1939-1985 » Sound Recordings » Other recordings