WORKING TEXT OF THE BRASSWIND TERMINOLOGY WORKING GROUP

Diagrams of the basic patterns of mouthpiece cup shape

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