My list is gonna be really weird but here goes: sikh shabad kirtan chants, turntablism (i.e. RJD2, Dan the Automator etc,..), jam bands (I linked a great example), ambient (Emancipator, Nosaj Thing & so on), dub (Heavyweight Dub Champion is pretty great), underground hip hop as long as it's relaxed (Gorillaz, Aesop Rock Deltron 3030, Hieroglyphics, MF Doom, Blackalicious), crazy genre defying stuff like Shpongle, Future Sound of London & Juno Reactor, whatever your favorite metal is (it's great for validating emotion) and of course:
THE GRATEFUL DEAD (or Further)
http://www.youtube.com/watch?v=UOs1aN4JNRA
http://www.youtube.com/watch?v=3YHy960QXt0
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"Standing on a well-chilled cinder, we see the fading of the suns, and try to recall the vanished brilliance of the origin of the worlds."
-Georges Lemaitre
"I fly through hyperspace, in my green computer interface"
-Gem Tos
