We are only just beginning to appreciate the healing power of music. In recent years, a wave of scientific research has upended everything we once knew about its effects on our brains - not only in reducing stress, but also in enhancing cognitive function, slowing the spread of neurodegenerative diseases like Parkinson's and Alzheimer's, even strengthening our immune systems. Here, a neuroscientist and celebrated musician introduces a bold new paradigm for medical treatment, rooted in the unexpected influence of music on our minds and bodies. From explaining how 'rhythmic auditory stimulation' can fight multiple sclerosis, to examining why Tracy Chapman's songs might just help cure PTSD, Professor Daniel Levitin offers surprising insights into the new science of music as medicine.