Group Tag

[magister]

You're right the MinimServer uses the Group tag; see http://minimserver.com/ug-browsing.html#...mpositions . I use it as described on this page together with the Composition tag for my classical music.

Simon or other folks may have better suggestions for you. All I can think of is to rename your group tag to something else using a program that can process large numbers of files at once. I suggest mp3tag, https://www.mp3tag.de/en/ . I've used it to work on multiple albums, although nowhere near as many as you have. I'm not sure what the upper limit is in terms of how many files you can have open at once. (And, to emphasize the obvious, make sure you have good backups before starting on large-scale changes like this.)