Denise founded Muscle Mixes in 1988 and was selling cassettes back then. "We were pioneers because nobody was doing it legally at the time!" she jokes. This is an extremely timely discussion considering what's been going on with Peloton and as more fit pros use music for online workouts. It's critical to know what "royalty free music" is, how it's used, the differences in license types, the needed convergence of fitness and the music industry, what the easiest and most cost effective ways are to legally use music and more!