useful tool to identify tagging inconsistencies

[thetalm]

Quote: Does it prompt the user with a suggestion for the "correct" value, or does it show all variations and let the user pick one?

The latter. It shows you a tree with all variations divided by issue, The list of items checked is really huge.
The extension checks 4 main areas: Albums, Folders, Persons (Artist, Album Artist, Composer..), and Tracks

Just to show you, this is the configuration screen for the "Persons" area:



EDIT:
if the image doesn't show, here is the link:
link