Mouthpiece for Brass-Wind Musical Instrument

A mouthpiece for a musical instrument, comprising:

• an inner surface that defines a cup and a backbore, wherein a longitudinal axis extends through the cup and the backbore, wherein the backbore has a first segment and a second segment and a tone enhancer located between the first segment and the second segment, wherein the second segment terminates at a lower end of the mouthpiece, wherein at least a portion of the tone enhancer extends at a greater radial rate along the longitudinal axis away from the first segment and is larger in a radial direction than at least a portion of the first segment.

A mouthpiece for a musical instrument, comprising:

• an upper section, wherein a cup is defined by an inner surface of the mouthpiece and is at least partially located at the upper section, wherein the upper section has a rim that has an end face, wherein the rim has an outer perimeter that has a major axis and a minor axis, wherein the major axis of the outer perimeter of the rim is greater in length than the minor axis of the outer perimeter of the rim, wherein the rim has an inner perimeter that has a major axis and a minor axis, wherein the major axis of the inner perimeter of the rim is greater in length than the minor axis of the inner perimeter of the rim;
• wherein the inner perimeter has a first straight segment and a second straight segment that are both completely parallel to the major axis of the inner perimeter, wherein the inner perimeter has a first curved segment and a second curved segment that have the same radius of curvature that is consistent through the entire lengths of the first and second curved segments, wherein the first straight segment engages both the first and second curved segments, and wherein the second straight segment engages both the first and second curved segments.