Unverified80% confidenceDecision RuleTime unknown
音调准确性要求：选购木琴/敲琴类应确认标注八音阶为C大调（Do-Re-Mi-Fa-Sol-La-Si），偏差≤±10音分才不会误导音准，杂牌铝片琴常有半音不准问题
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