What constitutes a big or small mouthpiece? There are several areas which can be described as parts of a big or small mouthpiece. • Cup diameter- The distance between inner edge or bite of a cup is described as the cup diameter. • Cup depth- The distance from the top of the mouthpiece rim to the bottom of the first cup is the depth of the cup. • Contour of the second cup- The shape of the second cup will effect how the mouthpiece responds. • Throat diameter- the width of the throat has a great effect on the sound…