I'd go for this first (ho, ho)
To my my ears slightly more coherent and together than the Live 74 show also available here and so I'd go for this first but get both. This is going more Grateful Dead and Hawkwind than anywhere else but not sounding that much like either except in that long open jazzy but space-y rock way. The cover makes me feel it might have been agressive in the way that some of these K... (didn't say it) records are but this one has strength and power but (thankfully) not too much darkness.
