For more information about our Areas of Study, please contact the following: Instrumental Studies - Dr. Shannon Shaker (616) 234-4186 shannonshaker@grcc.edu Guitar Studies - Jonathan Marshall (616) 234-2195 jmarshall@grcc.edu Orchestral Studies - Dr. Libor Ondras (616) 234-3303 londras@grcc.edu Organ Studies - Dr. Caleb Wenzel (616) 234-2294 calebwenzel@grcc.edu Piano Studies - Dr. Debora DeWitt (616) 234-4192 ddewitt@grcc.edu Vocal Studies - Dr. Caleb Wenzel (616) 234-2294 calebwenzel@grcc.edu