Brand Movie for C3 Fit In pulse that can measure human’s heart rate by just wearing it. We converted the runners heart beats into real-time music and played on the track field. And this film documented the process of creating “Heart Beat Music” by an ensemble of 4 runners. Technically it was not an easy project, but the concentration and skill by the great team led by Kosai Sekine produced a miracle in capturing the real emotions of the runners.