Chosen to make music and excelled (7)

'excelled' is the definition.
Although both the answer and definition are past participle verbs, I cannot see how one could define the other.

'chosen to make music' is the wordplay.
I cannot really see how this works, but
'chosen' could be 'in' ('you're in!') and 'in' is found in the answer.
'music' could be 'g' and 'g' is found within the answer.
The remaining letters 'sled' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

'and' is the link.

Can you help me to learn more?