Lanquidity is my favorite Ra LP, I also have the double-disc singles collection which is fun but not what I was expecting - there's a lot of R&B and blues in there! Its great of course.
I would kill to hear a copy of Disco 3000...or Astro Black for that matter.
My favorite track on Lanquidity is, I think, "That's How I Feel," the one with the bent bass note going on in the background and the repetitive vamp, sort of beautifully drippy funk, rubbery bass and hypnotic vibe, with Ra's keyboards sort of swirling and spiraling around the music, the saxophone simultaneously dissonant and relaxed, calming. "There are Other Worlds They have Not Told You Of" is impressive, but also incredibly frightening at parts...I was falling asleep while listening to it on headphones, and at the end it ebbs and flows and it was bringing me to sleep and suddenly there was this huge synth-chopping sound and I woke up scared out of my mind, like when you're just falling asleep and you dream that you've tripped.
Anyway, who wants to hook me up w some of that Sun Ra love?