Update Art Tracks
If the Art Track for one of your sound recordings displays incorrect track information, you can update the Art Track by providing YouTube with the corrected information. You provide updates using the same method you used to deliver the original sound recordings:
Upload a new version of the Art Track upload spreadsheet
Submit a new DDEX file
If you are updating any of the media files used for the Art Track, upload the files along with the spreadsheet or DDEX file. The media files must meet the required specifications. You don't need to re-upload any media files that aren't changing.