If we are talking pre-91 and proto goa, here is a few party hits from 91 or earlier:
Here are a few tracks from same time that like sundown one might call early Goa in the sense that they didn't just happen to fit in the style of music played there, but also was formed by it:
Put that video @ Playback Speed x 1.75 and it's like you're at a party and there's that dude trying to explain to everybody the latest shit-hot conspiracy theory.