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|Year/Date of Composition
||Flute, Oboe, Clarinet, Bassoon, Horn, Violin, Viola, Cello and Bass
The composer wrote two nonets; an early unpublished (and rarely-performed) H.144 (1925, Paris), and the better-known H.374 of 1959. One way to tell: H.144 has a piano part. I can only see the first page of this work here, but there is no piano part. I think that's fairly good evidence.