Videos



These videos were recorded by the Piano Technicians Guild at the Annual Convention of June, 2009 in Grand Rapids, Michigan.

This downloadable sound file of a digital recording of the Contiguous Major Thirds (CM3s) in Equal Temperament from F3 to A4 may be useful to those who are attempting to grasp the excact sound that these intervals should have:

Contiguous Major Thirds (CM3s)