UPDATED: Edit Category Tag v1.0
Universal, for macOS 11 and later only. The Category tag is a holdover from when iTunes managed podcasts. In the Music app, it is only visible and accessible when a playlist is in "Songs" View. This simple script will enable you to apply text to the Category tag of one or more selected tracks. (This tag is not transferred to the metadata of a track's file; it does not "travel" with a file.)
Latest version:
- Initial release
More information for Edit Category Tag v1.0 and download link is here.