major key signatures
学习abrsm英皇乐理的时候,学生会学到两种c谱号,分别是alto clef(中央
简谱中滑音的音乐符号,简谱中滑音符号与说明
learn the alto clef
major: 大调 flat :降记号 sharp:升记号 treble clef:高音谱号
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