Johnny Cash, Neil Young, Elvis Costello, and Eric Clapton have all been clients of Nashville’s biggest guitar dealer (and one of the largest in the world). Gruhn’s stocks used and collectible guitars, as well as reissues of musicians’ favorite instruments. Fretted instruments of all kinds can be found here. If you’re in the market for a 1953 Les Paul or a 1938 Martin D-28, this is the place to hit.