Description
Models
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- 4AM – Classic euphonium mouthpiece—old fitting, for pre-1974 Boosey & Hawkes and Willson
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- 4AY – Classic euphonium mouthpiece—American and Japanese fitting.
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- 6BM – All-around best-seller. Good in all registers. Old fitting, for pre-1974 Boosey & Hawkes and Willson. compares to a Bach 6½AL, a Schilke 51
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- 6BY – All-around best-seller. Good in all registers. American and Japanese fitting. compares to a Bach 6½AL, a Schilke 51
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