this album created the legacy of the 'concept' album. No longer was an album all about selling singles it was about the collective soul of the songs. Very few albums have more soul then Sgt Pepper's even after 40 years. The story goes that the Beatles were blown away by 'Pet Sounds' by the Beach Boys which in their minds far surpassed anything that popular music had come up with. Their answer to 'Pet Sounds' was Sgt. Pepper's Lonely Hearts Club. With the creative genuis of producer George Martin the Beatles put together an album that belongs in any aspiring Beatles fan collection. The White Album, Revolver and The Anthology are all great but this I think stands as the pinnacle of the Beatles music.