[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

6-8岁低龄儿童手小,可考虑C调而非降B调,C调管身更短音孔间距更小,反而更贴合小手;但音准和音色略逊于降B调,属于人体工学优先的取舍

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