Imogen Cooper, playing at hr birthday concert, photo by Wigmore HallTo London, to hear Imogen Cooper’s 70th birthday concert. That she chose to play the last three of Schubert’s piano sonatas shows how much he has always meant to her. A remarkable evening indeed. Some of the greatest of music played by one of the greatest Schubert pianists — stunning playing, taking us to the emotional depths. You can hear the concert on the BBC tonight (and then for a month).