Music is a lot, and cover a very wide set of interests. I visualized the related subreddit interests (not all music) of the top posters in r/musicproduction and it looks like this... https://i.imgur.com/I386faD.png I do have an all subreddits dataset but this topic is going to take a long time to go through. It's easier to spider off known subs than try and hunt them all down.

r:/metal_at

r/SingingCareer is a subreddit for singing as a career! I would say it counts, right?

Tremendously helpful, cheers love!