The Beatles. The best and most prolific songwriters of the past 50 years. As a plus they are the group with the most diverse catalog. You can bounce from Helter Skelter to Eleanor Rigby to Can't Buy Me Love to The Long and Winding Road to almost anything.
Definitely Pink Floyd. They're unquestionably my all-time favorite band. They put out both of top two favorite albums of all-time, (Wish You Were Here and Dark Side of the Moon). And they have music for just about every mood: introspective, silly, happy, angry, sad.
1-1-12 Bassnectar NYE SHOW! 1-21-12 G. Love and Special Sauce 3-1-12 Radiohead 3-9-12 Experience Hendrix 5-15-12 Jack White @ The Ryman 6-7-12 Bonnaroo 6-19-12 Roger Waters presents "THE WALL" 7-7-12 Ringo Starr's 72nd Birthday Party Extravaganza at the Ryman