Jody Jazz DV Alto Saxophone MouthpieceJody Espina has introduced the concept of Golden Section Proportions to the art of high end saxophone mouthpiece design. This perfect chamber bore facing combination will result in an extraordinary playing experience for you. Effortless Power & Beauty Here, nature, science and imagination combine to create a revolutionary new saxophone mouthpiece. Jody Espina has designed the JodyJazz DV (U. S. Patent No. 7,470,844) using proportions and principles