Using the Drafts System to Submit a New Album
At the bottom of the album submit page, you'll see a new box for attaching drafts to an album. The draft can be attached alongside the album submission, or submitted separately afterwards as an edit. Also note that providing the artist credits as a draft is something that is
required. Users are limited to only 3 "draft-less" submissions in the queue, rising to the normal 20 with drafts attached.