There are music videos but they can’t be edited. It would be nice to edit Thumbnail or at least have ability to assigned .png in the folder like “music-title-thumbnail.png”.
There’s already an existing feature suggestion discussing an option to edit/change some metadata of local extras using the Plex Web app – this should also apply for music videos which are local extras. In that case I suggest you comment/vote in that thread in order to help us avoid distracting or cannibalizing votes.
Unless I’m missing some unique aspect of your suggestion I’ll close this thread as a duplicate.
2023 clean-up: duplicate