The Tama/Kanstul Marching Baritone comes with the T65A mpouthpiece, which is similar to the 6½ AL Trombone Mouthpiece. The "G" throat and the #420 back bore gives this mouthpiece a round mellow tone with great carrying power at all volume levels. This mouthpiece is custom fit to our Marching Baritone lead pipe for maximized airflow with minimal effort.