Goa and psytrance
Rolling bassline, layered acid lines, long hypnotic stretches
This is the branch with the strongest claim to being its own scene, not a variant of anyone else's. It built its own parties, its own labels and its own festival circuit, and it kept a rhythmic focus while European Trance went off chasing melody. Psytrance is the broader modern term now, and it spans tempos and moods wide enough that regulars will happily argue none of it sounds alike.
Where to hear it: Pre-Trance Roots through to the Contemporary era on the timeline