GR Compu Bal 64 Cornet size:64 P-M Cor This cup is used for

This cup is used for marching band

This rim is standard on the G66 Series Mouthpieces as well as some G67 models

Beginners usually have a better chance of getting a good buzz with slightly more resistance

a unique experience that offers quietness without having to sacrifice a good feeling while playing on a Practice Mute

GR Compu Bal 64 Cornet size:64 P-M Cor This cup is used forFrom rich brilliant solo work to the demanding big, bold brass bands, GR offers the world's largest variety of Cornet Mouthpiece Models to suit every musical need. GR Cornet Mouthpiece Backbores are balanced with each cup volume to produce a characteristic cornet sound with precise intonation. Choosing a GR Cornet Mouthpiece is quick and easy. 1. Choose a rim contour. GR Cornet contours are exactly the same as their trumpet mouthpiece counterparts to