One example was Rammstein's Untitled album, it literally doesn't have a title. How do you tag that?
(if anyone has the link to the article, I didn't add it to my Wallabag collection...)
Track order # is part of the metadata, so it shouldn't have been an issue. But the music app I was using on Android at the time would crash whenever it got to a letter which was repeated (so the 2nd R E or T).
If you look up the album on streaming services, they use the naming format "TRACK 1 R, TRACK 2 E" and so on.
Thanks!