Piece played without practice session? (5)

I believe the answer is:
nonet
'piece' is the definition.
(I have seen 'musical piece' mean 'nonet' so perhaps 'piece' could also mean 'nonet')
'played without practice session?' is the wordplay.
I cannot quite understand how this works, but
'without' could be 'no' and 'no' is present in the answer.
'practice' could be 'net' (net can mean cricket practice) and 'net' is found in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for nonet that I've seen before include "Composition for nine performers" , "Piece for nine performers" , "Multi-figure composition" , "Music for nine instruments or voices" , "Composition for nine instruments" .)
