Ozzy Osbourne was able to say goodbye exactly as he desired at last July’s epic Back to the Beginning event in Birmingham, England. Now, producer Andrew Watt — who produced the final two albums the late metal legend recorded before his passing, 2020’s Ordinary Man and 2022’s Patient Number 9 — has disclosed that he and Osbourne recorded previously unheard music that they listened to the night before Ozzy’s farewell performance.

“There are some songs that we made for a specific reason,” Watt told Rolling Stone in this week’s episode of The Rolling Stone Studio. “And yeah, that’s all I can say. They’re hard for me to listen to. I haven’t listened to them.” Watt mentioned there is a plan for what to do with the tracks, but he isn’t at liberty to discuss that yet.

“The night before the concert, I actually went in Birmingham with [Osbourne’s wife/manager] Sharon and a couple of people to go get curry, and I was texting with Ozzy. He was in his hotel room, and he was like, ‘Come to the hotel, come to the hotel.’ I was sitting with Sharon and we were both like, ‘He has a big day tomorrow. Maybe I shouldn’t go, ‘cause he’ll get excited and everything,’” Watt recalled.

“But he was like, ‘No, you’re coming to the hotel. You are coming.’ So I went. I brought curry with me and sat with him,” he said. “And he was drawing like he usually does, and we sat and we listened to the stuff that we’d made, and made notes. That, and the next day, were the last times I got to see him. But we had a beautiful listening session and talked about a lot of things.”

Watt expressed that it’s hard to recall those memories now. “I miss him every day,” he said of the hard rock legend, who passed away 17 days after the Back to the Beginning show on July 22 at age 76.

Watt also responded to Black Sabbath guitarist Tony Iommi recently stating that he didn’t want to commit to a planned final Sabbath album because he felt Watt was “a bit too excited” about it. The producer mentioned that he thought the comments were taken out of context while admitting to being an “excited musician” and person.

After working on those two solo Ozzy albums, Watt stated Osbourne suggested they create one last Sabbath album, this time with the band’s original drummer, Bill Ward, who was not involved in the group’s 2013 reunion album, 13.

“I think looking back at all the things he wanted to do, making an album with Bill was really important to him,” Watt said of Osbourne. “And this was before Back To The Beginning was happening and everything. I think the idea of doing something with Bill was very important, so one of the first ideas for that was a potential album.” Watt mentioned that Osbourne instructed him to contact Iommi, bassist Geezer Butler, and Ward to get them on board.

“So, I called Tony. [I said,] ‘Would you want to do it?’ [He said,] ‘Yeah, that sounds cool. If Bill would do it, yes.’ Geezer [said], ‘If Bill would do it, yes.’ It was all about ‘If Bill would do it, yes.’ So then I had to have a conversation with Bill. And that was one of the strangest and funniest conversations ever because you’re talking to Bill Ward. It was a long conversation. He was speaking in tongues which now knowing him makes sense. Long story short without going into it too deeply; he was unable to do the album for personal reasons.”

The only outcome from it was a “nice, beautiful long e-mail” sent to everyone involved which though the project fell apart was a significant moment for Watt. “I was on an e-mail with the original members of Black Sabbath which was pretty cool,” he said of the project that ultimately fell apart because Ward was not available.

The film documenting Osbourne’s final gig, Ozzy & Black Sabbath: Back to the Beginning, will be released in theaters on October 28.

Watch Watt discuss Ozzy and Sabbath below.