Putting this here because it applies to all KLVs,
Was looking for a good mp3, mp4, ogg tag editor.
So searching the void repo I saw easy tag, which I've used a lot, but don't particularly like. I find it easy to screw things up with it.
Then I saw puddletag which lays things out more or less like a spreadsheet, converts filenames to tags, tags to filenames and is very easy and quick to use.
Just wanted to mention for anyone in the market for a decent music tag editor.