Jymmin is a new technology and a new training concept that merges musically expressive performance with physical exercise. “Jymmin” takes us back to our origins when music making and physical work were often intertwined. Music and physical exertion traditionally was strongly linked, both in traditional and in Western societies, in so-called work songs. We have recreated this experience in an exercise system, which can be performed individually or in groups. A novel form of musical performance, enabled by innovative music-making technology allows for the embodiment of musical creativity through exercise. The benefits of musical-feedback-training in comparison to conventional motor learning are likely to be a consequence of musical expression drawing partly on motor processes that we also use for communication, which are not exclusively under deliberate control, but to substantial degree involve emotional motor control. There is also scientific evidence that Jymmin very effectively engages endorphin, a cognitive feel-good neuro-transmitter system strongly related to endurance.