Doc Soup Sundays: From rarely seen gems to new biographies, Doc Soup Sundays rounds up the best arts and culture documentaries and pairs them with special guest Q&As.

How does a lock of Beethoven’s famously mad hair end up in the hands of Arizona residents Ira Brilliant and Dr. Alfredo “Che” Guevara? Will this hair reveal the secrets of the composer's deafness, volatility and creativity to modern science? Agile, precise and witty, Larry Weinstein’s acclaimed documentary is a consummate musical mystery as two parallel stories of the lock of hair unfold and converge in a surprising conclusion. The long strange trip of this relic through centuries is recounted alongside the decoding of Beethoven’s lifelong illnesses and their effect on his art.

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