Tom Service listens to the world in glorious technicolor as he investigates the link between music and colour.

We put music and colour together all the time. A piece of music can be 'dark' or 'bright' or we could be singing the 'Blues' - but what does that mean? Professor Jamie Ward - an expert in synaesthesia - is on hand to help. While Tom delves into a world of musical colour from Messiaen and Copland, Scriabin and Ravel to David Bowie and Beyoncé to discover whether music can ever be colourful.