The Rehab Sound Sculptor is a motion-tracking interface that allows the researcher to quickly map a subject's movement to any aspect of sound control. The motivation for developing this interface is that it allows us to determine which attributes of sound are potentially more useful than others for providing feedback in motor rehabilitation. There has been a significant body of work, particularly with Parkinson's disease, that has shown the rehabilitative benefit of auditory feedback during physical therapy. However, little work has been done to determine exactly which features of sound are responsible for this benefit. With the Rehab Sound Sculptor interface, we can investigate the relative contributions of specific sound attributes to rehabilitation.