The filing says the EP “deprives Prince from choosing what is released to the public and when.”

Prince’s estate and Paisley Park have filed a lawsuit against former Prince engineer George Ian Boxill who plans to release Deliverance, a six-track EP of unheard tracks they worked on together, this Friday, April 21.

ABC News in St. Paul, MN reports that Boxill is “trying to exploit one or more songs for his personal gain at expense of the Prince Estate.” According to Paisley Park, the songs in question are valued at more than $75,000.

Boxill reportedly refuses to turn over the tracks – one is currently available iTunes and Apple Music – and both Prince’s estate and Paisley Park claim that releasing them violates his contract.

Paisley Park and Prince’s estate also claim that releasing the tracks would “permanently and irreparably” hurt their interests and that “it deprives Prince (and now the Estate) from choosing what is released to the public and when.” They ask that Boxill returns “any and all masters, copies and reproductions”.