Paul McCartney's long-discussed score for the sci-fi shooting game 'Destiny' is finally getting close to being heard. Although the official release date for the music has not yet been announced, the New York Times is reporting that his theme song will come out as a single "soon after the game is released." 'Destiny' will hit stores on Sept. 9.

Much has been made of how odd this pairing is. And it turns out even his co-writers on the track wondered if the experiment would work, considering McCartney's avowed pacifism. "That was one of the things we were quite worried about, but he seemed excited about it," collaborator Marty O'Donnell of 'Halo' fame tells Edge. "He's played 'Halo' with his grandkids. I think he's pretty excited that he's stretching into an area he hasn't stretched before."

The setting also likely eased whatever problems McCartney had with transitioning into this brave new world. He reportedly recorded the new song surrounded by a 120-piece orchestra at Abbey Road Studios, with long-time Beatles producer George Martin's son Giles conducting. A suitably lush beta-edition 'Destiny' score (embedded above) has been making its way around the Internet.

Oh, and that wasn't the only Beatles connection, either. "He brought out his old tape-loop machine," O'Donnell says of McCartney. "So he sent me an entire session where he was playing around with all these tape-loops. We were just thrilled. That [was] the same machine that was on 'Revolver.'"

Mike Salvatori, who also collaborated on Halo with O'Donnell, was part of the creative process for this new track, as well. The producer on the date was Mark Stent, who has earlier worked with U2 and Madonna.

McCartney first mentioned that he was working on the 'Destiny' project via a tweet in July 2012, while the Times reported that work began as early as 2010. “What I love about it is that my music will get heard by a whole other bunch of people," McCartney told a Montana radio station earlier this week. "A whole other generation, a whole other type — gamers, really, rather than record buyers. That’s exciting to me."

Meanwhile, the new Michel Gondry-directed adaptation of Boris Vian’s 1947 novel 'Froth on the Daydream,' called 'Mood Indigo,' has opened. McCartney plays bass on about half the score, as well.

Marty O'Donnell and Mike Salvatori Talk About Destiny