Bare with me if the folowing is written like notes.

Strongly, i Like. Garage is my fave

You hot the spot with me and the prices a brill. I like the way you can just press play, not taken to a different page and just listen to what you like. SOOO much easier.
i would like to see a search facility. Although default joomla isnt brill, ive just got a few artists i would like to find.
More info... TrackListings are very good. Nice and neat. Clear precise.
Definately does not look like a joomla.
The icons on the cart under 'update' could do with tidying up. They look very pixely
The checkout procedure where you input your info, the white needs toning down to a grey. Ive had a guy called Vince who is a marketing consultant for ecommerce and he has noted to me about this in the past. so i thought i would pass on the info.
How are the items going to be delivered? Is it via a download or actual cd? Nothing is refered in the description or around the site.
Paypal are funny! They used to just accept the card details, process the payment and the user didnt have to sign up to an account. This peed me off when they changed this process and now you have to be a member. Google checkout dont require you to have an account. That may be something to look into.
Thats it. The process went ok. DO you get a confirmation when the person h asnt returned to the site. That used to be a problem.
Hope this helps
PM if you have any questions, ill be happy to help