Composition:

Arthur Kampela  http://www.kampela.com/

Fabien Levy  http://www.fabienlevy.net/

Tristan Murail  http://www.tristanmurail.com/

Georg Friedrich Haas

http://www.universaledition.com/Georg-Friedrich-Haas/composers-and-works/composer/278

Theory:

Michel Roth

http://www.michelroth.ch/

Orchestration:

John Corigliano

http://www.johncorigliano.com/

Guitar:

Steve Giordano  http://stevegiordanoguitar.com/

Greg Ruggiero    http://gregruggiero.com/
 

Wolfgang Muthspiel   http://www.materialrecords.com

CV upon request