OK, skip that bit. I have a collection of MP3 files, and the tags attached to some of the files are causing errors in the way albums are displayed in some music players. I want to view and edit MP3 tags. My last post on the subject ended with some confusion as to which tag editors can do what, so here is a quick review.
Kid3 is the clear winner
Applications using the Mutagen backend are a very usable alternative in Gnome, only lacking the ability to see which ID3 standard is being used, and if an ID3v2 tag exists, to see which version, and to switch view between tag standards if both exist.
UPDATE: A comment points out that there is a version of Kid3 for Gnome (kid3-qt) which doesn't have the KDE dependencies- a tip of the hat there.