Which violinist worked with the American rock band "Seventh Key" who also worked at Tulsa Philharmonic?
Seventh Key Seventh Key is an American rock band formed by Mike Slamer of City Boy and Streets and Billy Greer of Streets and Kansas. The current lineup consists of Greer on bass and lead vocals, Slamer on guitar, bass, and keyboard, Pat McDonald on drums, David Manion on keyboard, and Terry Brock on guitar and backing vocals. The band had two previous drummers, Chet Wynd (2001) and Jamie Thompson (2004), as well as guest appearances by David Ragsdale of Kansas on the violin (2005) and Johnny Greer on the mandolin (2005).
Sergei Orekhov Sergei Dmitrievich Orekhov (sometimes spelled: Sergey Dmitrievich Orehov) (in Russian: Сергей Дмитриевич Орехов) (1935–1998) was a Russian classical guitarist. A virtuoso on both the six- and seven-string guitars, Orekhov was among the most prominent performers and arrangers in the seven-string Russian guitar tradition.