His name is Henry, and he lives in a nursing home. For years he slouched deep in his wheelchair, utterly unresponsive to caretakers and visiting family. Until one day he was given an ipod -- preloaded with popular tunes from his youth. What followed was a dramatic, exuberant transformation that has to be seen to be believed. "Alive Inside," a new documentary brings to viewers a study of the alchemy that music can work on seniors living with dementia and Alzheimers. In the film, a social worker and famed neurologist Oliver Sacks embark on an exploration that traverses the magic, mystery and healing potential of music.