Erik Greiffenhagen Morgan EG Cool Tenor Saxophone Mouthpiece (NEW)The Morgan EG Cool Tenor Saxophone Mouthpiece Model. Designed by Erik Greiffenhagen. This mouthpiece is designed to capture the West Coast Cool School sound of players like Lester Young, Zoot Sims, Stan Getz etc. Premium hard rubber. For decades, Erik has custom made this mouthpiece for many customers. This is the first of an EG line of tenor mouthpieces to offer some of Erik's great custom made mouthpieces available to more players as production