(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
(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