Like a lot of its brethren, this beloved blues rock live double-LP saw the light of day due to this Southern sibling act’s ability to sell tickets but inability to sell records. Legend has it that studio brass wanted to cut the jams, which would be like cutting the desert scenes from Lawrence of Arabia. Cooler heads prevailed. That means two of the four sides consist of one song each, and while it’s probably excessive, originals like “Whipping Post” and covers like “You Don’t Love Me” only get better the closer to the sun the band flies.