Overview Reviews Product Description Medium. Great for chordal material in the bottom two octaves. WARNING: Cancer and Reproductive Harm Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Vic Firth Vic Firth M274 Corpsmaster Keyboard/Iain Moyer-- Medium Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments