Designed to provide more flexibility, the M30 incorporates a very long facing and a large tip rail to produce a mouthpiece similar in sonority to the B40, with easier sound production qualities. .115 tip opening, long facing. Cap and ligature not included. Vandoren has developed the 13 Séries mouthpiece specifically for American clarinetists using A440 pitch. The only difference between the "Traditional" and "Profile 88" mouthpieces is in the exterior angle of the beak. Therefore, the musician i