8. The Allman Brothers Band - 'At Fillmore East'
There are only 7 songs on the Allman Brothers' 1971 live album At Fillmore East, but there was no way a single album could ever contain one of their concerts back then. "Whipping Post" alone is over 23 minutes long and takes up an entire side of an album. The record hit shelves just three months before Duane Allman died, and it remains the ultimate document of their live show during his tenure in the band. The album has been expanded a number of times over the years, and the current one has an insane, 33-minute long "Mountain Jam" that needs to be heard to be believed.