The T4G is a Symphonic Tenor Trombone Mouthpiece that works seamlessly with our Marching Euphonium. The combination of two great mouthpieces, the T4G combines aspects of the 5G and 4G Symphonic Tenor Trombone mouthpieces into one, which best suits our Marching Euphonium. It features a large cup, which produces a brilliant full-bodied tone. The T4G is very useful in both upper and lower register work.