I think it would be awesome if Spotify introduced a new genre to the Browse/Search section: Psychedelia. Here, it could include many of the playlists it already has such as Psytrance Supernova and Psychedelic Rock but also add new ones. There's alot of room for improvement in Spotify's Psytrance collection: there are many sub/fusion-genres of psytrance (Goa Trance, Nizhonot, Hitech, Dark Psy, Psydub etc.) and there are even dedicated festivals such as Psy-Fi with separate stages for each vibe. I know this may be a slightly obscure scene globally speaking but there is definitely a large and dedicated enough audience to cater for.