Musician who played with Grieg's genre (6,8)

I believe the answer is:

george gershwin

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'musician' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'who played with grieg's genre' is the wordplay.
'played with' indicates an anagram (letters playing around).
'griegs'+'genre'='griegsgenre'
'who' with its letters anagrammed with 'griegsgenre' makes 'GEORGE GERSHWIN'.

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