| Librettist | Susan Oyama |
| Date of composition | 1963 (parts were reworked and incorporated in Opera (1970)) |
| Premiered | 1969, May 9th in Iowa City, IA, United States |
| First published | Universal Edition |
| Approx. duration | 45 minutes |
| Instruments |
Voice (Soprano)
Voice (Mezzo-Soprano) 2x Actor 2x Chorus/Choir Orchestra |
| Autotranslations beta |
Luciano Berio: Traces Luciano Berio: Traces Luciano Berio: Traces |
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