Abstract: An improved mouthpiece for use with single reed woodwinds to enable the generation of improved sound quality from the standpoint of enhanced harmonic tone generation. The configuration of the mouthpiece in the area overlying the opening which underlies the vibrating end of the reed is significantly modified relative to prior art construction to enable the reed to vibrate a column of inducted air as the same passes through a relatively narrow channel, following which the column enters a channel of substantially greater cross-section before exiting to the neck of the instrument. As contrasted with the prior art construction in which the area immediately above the vibrating portion of the reed defines an air column of greater cross-section, the constricting of the column at the point in which vibration is imparted generates additional harmonics which significantly affect the quality of the tone.