Vincent Bach 4G Trombone Mouthpiece Large Shank (Bach 341-4G)Bach 341 4G Trombone Mouthpiece The Bach 341 4G is a large shank tenor trombone mouthpiece with a broad, resonant sound and a deep, centered feel. Long favored by players who want more breadth and depth in the tone, the 4G offers a warm, expansive sound while maintaining the clarity and response that have made Bach mouthpieces a standard for generations. Its larger rim diameter and deep cup make it an excellent choice for artists looking for a