Peterson Electro-Musical Products Inc. has been in business for 96 years. It is a family owned business whose primary line is church organs. In the 60's Peterson started making tuners for their organs and out of that came a line of precision tuners used by professional and amateur musicians. There is a full line of tuners from rack mount to clip on. We are proud to carry their products for musicians who demand the best in precision, strobe based tuners.