Synthetic album via playlist

[TheDreadPirate]

Musicbrainz has an app called "Picard" that can analyze music and auto-tag, and even rename files (optional), in a way that works well with Jellyfin.

Keep in mind that each release is mastered slightly differently with different audio finger prints. Picard will tag a song with the release that it most closely matches. I also have some compilation CDs and Picard correctly identifies that the files belong to that compilation album instead of the various albums they originally belonged to.

BUT you can override that. And Picard's UI makes that process much simpler and quicker to make mass changes.