Adrian Dunbar known for playing a police chief is doing something completely different. Katie Paterson explains why she’s sending a meteorite back into space and Jonny Greenwood performing his Grammy award winning score live. John Wilson talks to Choir master Gareth Malone and War Horse composer Adrian Sutton, Matt Wolf reviews The Young Vic theatre’s new production of A Streetcar Named desire and Julian Lloyd Webber on his future plans in music.