For over fifty years now, Randy Newman has been a mainstay of the American music industry, as a songwriter, a performer and a film composer. His songs have been covered by dozens of famous artists, several of his albums have met with critical acclaim, and he has made a comfortable living as the composer of choice for the likes of Pixar (to date he has composed the soundtracks of seven Pixar films). So he is that rare beast, both critically rated and ridiculously successful. Dark Matter, Newman’s 12th album proper, covers a lot of ground in its nine songs, using…