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Ahhh this explains Pink Floyds Ummagumma Album, well at least some of it

Ha! Funny that. During reading the entry I suddenly thought, "I haven't listened to Ummagumma for ages, and promptly put it on."
Not sure anything explains Ummagumma tho.

Lots and lots of acid explains Ummagumma
BCNU - Crescent

Nice to see i can be of some help