Bremer Trust, a company that has temporary authority over Prince’s estate, had to drill into Prince’s vault of unreleased music, albums, and music videos in order to take inventory of what was inside. But that vault might not be the last of Prince’s unreleased music.
According to Rolling Stone, Prince specifically said a couple years ago that he had more than one vault of unreleased work:
I’ve never said this before, but I didn’t always give the record companies the best song. There are songs in the vault that no one’s ever heard. There are several vaults; it’s not just one vault.”
The vault that Bremer Trust opened was a giant room with shelves, sealed by a door with a spinning wheel, ABC News reported.
Prince’s vault of unreleased music includes at least 50 completed music videos that Prince’s producers made that were never released. It also includes complete Revolution albums, two Time albums, and one Vanity 6 album. Prince has said that the music in his vault(s) is among his best work and he purposefully sometimes did not hand over his best work to producers.
His vault also includes an unreleased documentary by Kevin Smith. Smith talks about the documentary in the video below, around the 28:00 mark:
As for where the other vaults could be or if they really exist, this isn’t yet known. If they do exist, as Prince said, they would likely be somewhere else at his Paisley Park estate.