An Analysis of the Ortmann Tests in Tonal Discrimination and Memory
Laurence A. Petran · Bulletin of the American Musicological Society · 1937
tempo, dynamics and contrasting styles of bowing, on the speed of shifting; kinesthetic aids in shifting. The study on shifting thus far has included over 600 records of various types of point-of-light and motion-picture photography of the actual motions, made to show, not only typical motions, but also variations of these in relationship to the tonal or aesthetic environment. A number of these records were used to illustrate the address.