Which violinist worked with the American rock band "Seventh Key" who also worked at Tulsa Philharmonic?
David Ragsdale David Lasater Ragsdale, (born April 3, 1958) has been the violinist for Kansas from 1991 to 1997 and from 2006 to the present. He started violin at the age of three. After studies with classical teachers and a stint at the Tulsa Philharmonic, Ragsdale's violinist duties took him out of the largely classical area and into rock and roll.
Robby Steinhardt Robert Eugene "Robby" Steinhardt (born May 25, 1950) is a rock violinist and singer best known for his work with the group Kansas, for which he was co-lead singer / "frontman" and mc along with keyboardist Steve Walsh, from 1973 to 1982 and from 1997 to 2006. He and Steve Walsh are the only original members of the band who are not from Topeka.