The creative minds behind Mixed In Key software are proud to announce the release of Beyond Beatmatching: Take Your DJ Career to the Next Level, a book that gets deep into the craft and business of professional DJing. Authors Yakov Vorobyev and Eric Coomes have more than 20 years combined experience in the professional DJ business. Vorobyev is also president of Mixed In Key, makers of the industry-standard harmonic-mixing software for DJs.