Lebayle mouthpieces are played by some of the most discriminating players in the world. This is a hard rubber tenor saxophone mouthpiece with Lebayle's LR Chamber opening. Its tonal tendency is somewhat bright, brighter than the Jazz opening but not as bright as the AT. It is a versatile mouthpiece that is capable of a broad range of expression, but that is particularly handy when you want to lean into the piece a little for some more high end harmonic content.