Tom Service discusses Beethoven at the keyboard with pianist Angela Hewitt, who is currently touring Beethoven's Emperor Concerto.
He also considers animal and human brain responses to music with Henkjan Honing (editor of a new book The Origins of Musicality) and with Felix Stroeckens (who has been putting crocodiles in an MRI scanner and playing Bach to them).
He also investigates a new opera being toured round Scotland's whisky distilleries by NOISE, and meets Ewan Campbell to discuss musical maps in the context of radical scores from the Middle Ages to the present day.