Godley's - Shudehill
OK, it wasn't a music shop but it does have good links to the Manchester scene. The most obvious is that it was owned by the family of Kevin Godley of Mockingbirds, Hotlegs, 10cc and Godley-Creme.
Its also important as many musos would have bought their record decks and hi-fi's from there. Not a great reason but the pic is just so good and brings back many memories.