The throat exponent is the math used by GR to design the radius
that enters the bore of the mouthpiece from the cup.
- In the past, manufacturers
have used terms like "shoulder" or "second cup" to describe
this area of the mouthpiece.
- By using defined mathematics, GR can design
specific rates of change to this area of the mouthpiece, and he knows the
playing result before the mouthpiece is play tested.
- Different exponents match certain trumpets or certain
- This is invaluable proprietery information. If we know your horn and bell, matching a custom mouthpiece just became a whole lot easier!