Double vinyl LP pressing. This set features Chicago's live performance from Aug. 28, 1970 at the Isle of Wight, where they co-headlined with Jimi Hendrix and the Doors. It features extended free-form versions of their early landmark tracks, "I'm A Man, " "25 or 6 to 4, " "Introduction, " South California Purples" and the "Ballet For A Girl In Buchannon."