I use Jellyfin for movies and TV shows, but never tried for music because I already had Navidrome set up. It is so good, really one of my all-time favourite pieces of software. It greatly repays a well-tagged collection, relying on embedded metadata only. Not sure how Jellyfin works here, maybe there is some ability to scrape album info from online sources (?), but I believe it’s pretty strict about directory structure (one folder per album), which Navidrome doesn’t care about.

For me it’s Irish traditional music. Aside from having an interesting history, the style often takes a very high level of musicianship to play well. A single monophonic instrument can play a tune and the fast-moving stream of notes can simultaneously spell out melody, counterpoint/call-and-response, and harmony, as well as providing a strong rhythmic pulse (it is music to dance to, after all).