Sonnet performed by ensembles (6)

I believe the answer is:
nonets
'ensembles' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'sonnet performed' is the wordplay.
'performed' indicates anagramming the letters.
'sonnet' anagrammed gives 'NONETS'.
'by' acts as a link.
Can you help me to learn more?
(Other definitions for nonets that I've seen before include "Pieces of music for groups of nine" , "Pieces of music for nine instruments or voices" , "Compositions for nine performers" , "musical pieces" , "Compositions for nine players" .)
