I go in here every so often, both to buy things and make donations. They turn the music off without asking questions, but you have to ask. I generally go to the back of the shop to look at the books, though I have bought other things as well and generally quiet there, though yesterday I was unlucky. The shop is fairly spacious, but quite full, so some narrow corridors you have to go along. Generally not a lot of people in it. They let me leave my bike in the space between the two doors which I find very helpful.