Music for nine instruments or voices

• The planets, before 2006
• Musical ennead
• The Muses e.g
• Odd group of musicians?
• Large jazz group
• The planets of the Solar System, at one point ('90s kids remember)
• Musical piece for nine
• Trio times three
• Chamber work

Wikipedia Word definitions in Wikipedia
Franz Lachners Nonet in F major is a composition for chamber ensamble published in 1875.