| cuspoid (a curved profile monotonically decreasing in curvature from rim to distal end, only used in mouthpieces for french horns) | |
| conical | |
| funnel (the profile has a point of inflection, but this not close to the point of minimum bore diameter) | |
| intermediate | |
| edged (the profile has a point of inflection close to the point of minimum bore diameter) | |
| hemispherical (the cup meets the grain or backbore at an angle close to 90*degrees) | |
© the authors, 2005.
This page updated 14.1.05