Freedom: Atlanta Pop Festival (200 Gram Vinyl, Gatefold LP Jacket) (2 Lp's)Jimi Hendrix's headlining appearance at the Atlanta Pop Festival would be the largest U. S. audience he would ever play to. Most people assume it was Woodstock, which was a larger festival, but by the time Jimi took the stage at around 9 a. m. on Monday morning, the Woodstock crowd was down to about 25,000 stragglers. Estimated between 300,000 and 400,000, the actual crowd at Hendrix's Atlanta Pop performance was hard to pin down due to the fact that