Year of composition:
1962 to 1964 (finished in 1969)
Instrumentation:
for solo soprano, 4 choir groups and 13 instrumentalists (cond.) (finished in ’69) (4 tp. / 4 trb. / 2 electr. organs or synth. / 3 perc.) (5 transmitters, 5 loudsp., mixing console / sound proj.)