Peter Madcat Ruth is a Grammy Award-winning virtuoso harmonica player based out of Ann Arbor, Michigan. But Madcat doesn't just play blues harp: He also sings and plays ukulele, guitar, high-hat, jaw-harp, penny-whistle, kalimba, banjo and other folk instruments from around the world. Madcat's repertoire of styles includes Blues, American Roots Music, Folk Music, Jazz, and World Music.