I don't believe that stores pick music to match the desired customer. Stores play the music that mid-management, esp. uncultivated mid-management, thinks is cool.   

One day the DH and I were in a Macy's store, and the whole floor we were on was empty except for us. My husband saw me standing with my hands over my ears and requested that the music be turned off. Of course we were told it could not be turned off, but the manager did turn it down.

One of the selections we had to listen to was "Sea Cruise", one of the nastiest pop songs ever. Even when I was a kid I knew that song had a bad smell to it. We left the store and drove along the tree-shaded streets of Johnson County Kansas, among beautiful homes in perfect condition, with manicured grounds. This is chamber music and jazz territory. It was no surprise to me the store was empty.

About blocking - sad to say, hearing protection is designed to block machine noise but not voices, so using it makes you hear the ugly singing better than ever. I know because I've tried it.