Musical ennead

• 9-person musical group
• Frequent complaint heard in rural village group
• Musical work, one featuring in London concert ultimately
• Group on Miles Davis's "Birth of the Cool," e.g.
• A singing group
• Piece of music to some extent in one tempo
• Hydra's heads, e.g
• Set of nine voices
• Group of nine, as in music

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Nonet \No*net"\, Nonetto \No*net"to\, n. [From L. nonus ninth, like E. duet, fr. L. duo.] (Mus.) A composition for nine instruments, rarely for nine voices.