As a new piece of Who, it's a bit so-so (frankly, the Graske storyline could not have been less interesting and whoever was dubbing in his voice was seriously lacking), but as a treatise in interactive acting, it was fascinating. David wasn't even there and he had the audience eating out of his hand. His timing and intonation couldn't have been more exact than if he'd been in another room piping his performance in live. The interaction with the orchestra and conductor was well done, especially the trick of sending the music though the portal. And the little speech at the end about music being for everybody, not just musicians and people with albums, was a nice message for the kids.
Review of Doctor Who: Music of the Spheres
