[Rick and Roll]

Nash the Slash - FM - Black Noise (V)
Ben Mink - FM, but on Rush's "Losing It" (V)
Anna Sofi-Dahlberg - Anekdoten (C)
Greg Hiser - Boud Deun (V)
Matthew Parmenter - Discipline (V)
Jerry Goodman - Dixie Dregs (V)
Allen Sloan - Dixie Dregs (V)
Jean Luc-Ponty - himself, Zappa (V)
Darryl Way - at least on Tull's "Heavy Horses" (V)
Geoff Perry - Gamalon (V)
Ray Shulman - Gentle Giant (V)
David Cross - King Crimson (V)
Robbie Steinhardt - Kansas (V)
Alan Morse - Spock's Beard (C)
Tuukka Helminen - Alamaailman Vasarat (C)
Marko Manninen - Alamaailman Vasarat (C)

and the violin guests:

Judy Garf - in Djam Karet's "Lights Over Roswell"
Kevin Burke - on Kate Bush's "Violin" (what a stretch!)
John Shaehan - on Kate Bush's "Jig of Life"
Chris Gaugh and Brian Hale - on Fish's "Perception of Jeremy Punter"

That's 21. I could be a real d@#* and list all of the players in Echolyn's "All Ways The Same" but I hope that will do.

Checking to see if Am Vas in on the playlist.....

They're not! So...

Joe Dupre - on the Evolution of Jazzraptor's "Cat's Got Nine"

(21-2+1) There's 20. Phew!