Peter Madcat Ruth has established an international reputation through his exhilarating, riveting virtuosity on the harmonica. His expertise on this instrument has amazed audiences world-wide. He is equally at home playing blues, folk music, jazz, country, or rock and roll. Performance Magazine refers to him as "A harmonica virtuoso who is rapidly approaching legend status."

Madcat's experience is extensive. He has been an invited guest performer at many harmonica festivals in North America, South America, Europe and Asia. His harmonica playing is heard on over 100 CDs and LPs. National television and radio appearances, symphony orchestra performances, radio and television advertisements, and harmonica workshops all attest to Madcat's reputation as one of the best and most versatile harmonica players in the world.