(piano with short-wave receiver, electronium or synthesizer with short-wave receiver, tam-tam with short-wave receiver [2 players], elec. viola with short-wave receiver, sound projectionist with 2 filters and 4 faders) (4 short-wave receivers, 5 micr., 4
for 12 singers, Hammond organ or synthesizer, 4 ring modulators, tape (cond., timer) (2-track tape rec., 4 x 3 micr., 2 x 2 loudsp., mixing console / sound proj.)
for orchestra, 4 sine-wave generators and 4 ring modulators (cond.) (undefined number of microphones; the rest of the equipment as in Work No. 16½ MIXTURE for small orchestra)
for orchestra, 4 sine-wave generators and 4 ring modulators (cond.) (undefined number of microphones; the rest of the equipment as in Work No. 16½ MIXTURE for small orchestra)