The abilityto name any musical note as soon as you hear it ,or sing the right note if someone asks for it has long been regarded as a rare gift. As Peter Evans discovers, perfect pitch could be a lot more commonplace than previously thought. This revered talent is forcing scientists to reassess how our memories really work. Could it fuel a more efficient way of remembering?
Producer Adrian Washbourne. E-MAIL: scirad@bbc.co.uk