Former classical singer here. Only theory I can come up with is that opera tends to have large casts where all the singers are credited individually which would inflate the absolute numbers of "artists" relative to other generes. I still struggle to imagine this accounting for bringing such a niche genera to the top here.

> Opera I thought was a very strict discipline, needing rigorous somewhat esoteric training in order to produce the right sounds. How could there be so many opera artists?

My guess is just the same opera performed by a ton of different orchestras, and perhaps the same orchestra for different recordings, times however many operas there are.

I'm assuming you don't know much about music then?

> do people get high and just start shoveling psy-trance tracks out or something?

Like with most art-forms, it's basically impossible to properly appreciate the art-form without having any context.

I was suspicious of this too. I don't think "genres" table is correct.

On Spotify, Blue Öyster Cult are listed as: ['album rock', 'classic rock', 'glam metal', 'hard rock', 'progressive rock', 'rock'] In the archive, they are just coming up as ['classic rock', 'hard rock']

Grimes: ['art pop', 'canadian electropop', 'grave wave', 'indietronica', 'metropopolis', 'neo-synthpop'] In the archive: ['art pop']

Taylor Swift: ['pop'] In the archive... nothing.

My guess is a large portion of the psytrance music is slop, whether AI or some other form of auto-generation.