Oliver Sacks's book Musicophilia: Tales of Music and the Brain supplies the case studies for this NOVA episode, which aired on PBS in 2009 and turns Sacks's clinical stories into film. Derek Paravicini, blind since infancy and severely disabled, sits at a piano and reproduces complex pieces after a single hearing, a talent doctors and musicians on camera try to explain by looking at how his brain rewired itself around the loss of sight. Matt Giordano and Tony Cicoria appear as two more cases where music intersects with an altered or damaged brain, each with a different route into an unexpected relationship with sound. The film uses their stories to get at a broader neurological question: what happens in the brain when it processes rhythm, pitch, and melody, and why some people, after injury or through unusual wiring, end up with musical abilities or obsessions far beyond ordinary experience. Interviews with researchers frame each case rather than leaving the phenomena unexplained.