Note music and poetry, say, American stores (9)

'poetry say american stores' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'note music' is the wordplay.
I cannot quite see how this works, but
'note' could be 'minim' (type of musical note) and 'minim' is located in the answer.
'music' could be 'a' and 'a' is found in the answer.
The remaining letters 'rts' 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?