小字二组，一组，小字组的c2,c1,C? 或者C3C4C5？三个音区，音乐家算法是15度，两个八度，左手指月比人世间高。

来源: 燕然山于 2022-04-04 10:17:47 [旧帖] [给我悄悄话] 本文已被阅读：次

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