For centuries, composers have re-used music from their earlier works in their new ones. But why? Were they simply pressed for time, or might there be another reason? And what do these 'recycled' versions sounds like? Does music become diluted and weaker with each reincarnation, or could the opposite be true? Together with expert musical recycler Saul Eisenberg of The Junk Orchestra, Tom Service explores this 'green' musical practice.

Dom Wells (producer)