"The writing process is complete," Halford tells Billboard. "Now it's the painstaking work of making sure that you get every single note, every single nuance of the vocal, every tiny aspect...right. We're still tracking (instruments). It's just a very laborious but enjoyable part of making the record."

Priest is producing the album itself at the moment, but Halford notes that "there's always a possibility somebody might come in to overview some of the things we're doing."