I work remotely and find myself working from a lot of Starbucks. The music level seems consistent no matter where you go to the point where it feels like a policy. It is just loud enough that you can't drown it out with a good set of headphones or take a conference call without annoying the rest of the group. It seems too consistent to be unintentional.
Conversely, there's a new coffee shop in Chicago that is designed from the ground up to facilitate work. It has tons of natural light, freely available whiteboards and almost no music call Limitless coffee. It is such a joy to not have to deal with the din that I go there even when I'm not working. You can almost hear yourself think.