Utilize the input text as a context reference, choose the right relationship between 'Fnac' and 'music' from the options.
Options: founded by, stock exchange, brand, product/material produced

Elsewhere, shares in French electrical goods retailer Darty (Other OTC: KESAF - news ) rocketed after books and music retailer Fnac said it has made a proposal to buy the company for £533m.
product/material produced