I looked at the current list of genre tags, and am not sure how specific the genres are supposed to be. For example, the current list includes the following genres in the Western classical tradition (example just because I’m familiar with it):
- contemporary classical
- modern classical
That is, well, a mess. The presence of baroque, modern, and contemporary, seem like we’re being somewhat specific — we’re not going to lump together 1,000–1,500 years of music as one genre. But then we’re missing romantic, a rather shocking omission considering its popularity (of course it has other meanings too, making for tagging fun).
There is also weirdness; “symphony” isn’t really a genre (unless that’s some non-classical genre I’m not familiar with). And “opera” is very broad — a bit over 400 years of music there. “Post-classical” is either confused or broad; does that mean everything after c. 1800?
That said… I’m not sure how much hope there is in getting it all tagged as anything but “classical”