说明

• Here&;s some logic in your reference: C=Db, D=Eb, F=Gb, G=Ab, A=Bb 1 Good traceability with Unique code 2 Great reed flexibility via low temperature expertise warmth treatment task three New mouthpiece design will result in fine air tightness with louder sound four New slider design with flexibility and sturdiness 5 Brass cover and comb with palladium coating

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