Matt Smith filmed scenes as the Eleventh Doctor that were played during the show, but did not appear on stage. Murray Gold composed the soundtrack, which was performed by a live orchestra conducted by Ben Foster. Murray Gold said: "The live element always adds something extra, but these will also be brand new arrangements for a new band of very talented musicians. It's very exciting." Steven Moffat said: "This is everything I ever wanted since I was eleven. A live show, with all the coolest Doctor Who monsters, a proper story, and brand new screen material."