As with all goods on amazon you have the right to return anything , all you need to do is give a reason why. At the top right of your logged in page you will see a returns and purchases tab. When you click on this you get a list of items you have bought. Simply click on the item you want to send back and you will have to give a reason why. You then print off a returns label. IMPORTANT over here in England you have to nominate a place where you want it picked up from , the information for your location is part of the bar code so once a place is nominated you cant take it anywhere else.
Funny you mention music , I returned 2 by a certain person and I smelled a rat because the sound quality was dreadful , I successfully sent them back by doing the above.