Yamaha offers a wide variety of trumpet mouthpieces.
YAC TR5A4 - favors upper register with small cup and broad, flat, rim contour
YAC TR6A4a - very shallow cup helps jazz lead players with high notes
YAC TR7B4 - good for thin-lipped players, facilitates endurance and brilliant sound
YAC TR8C4 - standard balanced design and small rim for excellent all-around performance
YAC TR9C4 - rim and cup shape similar to 11C4-7C, but cup ...