Italian conductor Andrea Colombini said of his student, "The gestural nuances of a conductor have been fully reproduced at a level that was previously unthinkable to me. This is an incredible step forward, given the rigidity of gestures by previous robots. I imagine the robot could serve as an aid, perhaps to execute, in the absence of a conductor, the first rehearsal, before the director steps in to make the adjustments that result in the material and artistic interpretation of a work of music." Yumi is not the first computer artist. In 1973, professor and artist, Harold Cohen created a software program called AARON – a mechanical painter.