Pennsylvania's unique culture gave rise to the first organs built in America by professional organbuilders, and also America's first native-trained organbuilder, David Tannenberg, all in the 18th century. As cultural assimilation progressed in the 19th century, the characteristics of Pennsylvania organs were also merged with other styles, rendering very interesting organs. The process continued in the first half of the 20th century, rendering organs by such firms as Skinner and Casavant that met the musical expectations of the Pennsylvania culture at the time they were built. This set samples almost all of the organs OHS members heard during the 2003 OHS convention, and includes the entirely unique 1931 Steinmeyer organ as played magnificently by Ken Cowan.