Over the years some works previously attributed to Johann Sebastian Bach have been reattributed to other composers, barely causing a ripple in the placid waters within the classical music landscape, but when Forensic Antho-Musicologist, Professor Martin Jarvis, dares to suggest evidence exists advocating the great maestro's wife, Anna Magdalena, as a serious contender for recognition, the reaction of the Bach orthodoxy is swift and fierce, and access to key research materials is denied. 'There will always be those who find themselves threatened by any possible change and this one is particularly threatening because it involves a woman' suggests Dr. Alan Powell, Emeritus Professor of History at Charles Darwin University in Australia. The rapid acceleration of emerging technology and forensic techniques changes beliefs and critical thinking in ways the world has never seen before. US Document examiner, Dr. Heidi Harralson, examines original manuscripts and investigates the impact on the monetary value of Bach autographs. British Composer, Sally Beamish, narrates.