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Year of composition: 
1972 - 1973
Year composition ended: 
Scored for: 
2 pianos and orchestra

Instrumentation: 3 3 4 4 – 2 3 3 1 – perc(3), pno, e.org, alto sax, t.sax, str
Instrumentation details: piccolo; 1st flute; 2nd flute; 1st oboe; 2nd oboe; cor anglais; clarinet in Eb; 1st clarinet in Bb; 2nd clarinet in Bb; bass clarinet in Bb; alto saxophone in Eb; tenor saxophone in Bb; 1st bassoon; 2nd bassoon; 3rd bassoon; contrabassoon; 1st horn in F; 2nd horn in F; 3rd horn in F; 1st trumpet in C; 2nd trumpet in C; 3rd trumpet in C; 1st trombone; 2nd trombone; 3rd trombone; bass tuba; 1st percussion; 2nd percussion; marimba; piano; electric organ; violin A; violin B; violin C; viola; violoncello; contrabass

First performance: 
15/03/1973, New York. Bruno Canino and Antonio Ballista, New York Philharmonic, dir. Pierre Boulez
Universal Edition
Edition number: 
Program notes: 

Author's note: Italian

Author's note: English

Author's note: French