Unverified85% confidenceDecision RuleTime unknown
木琴/钟琴选校准过的固定音高（Do-Re-Mi准确），廉价产品音准偏差大反而破坏音感培养；金属音板比塑料音板音色更纯净持久
1
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85%
Confidence
Long-term
Relevance
-
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