和声大小调中有几个大七度,几个小七度,几个减七度,求快速解答俶谢谢

2025-04-06 11:16:03
推荐回答(1个)
回答1:

答案可以先告诉你:
和声大小调音阶中的大七度音程共有三个;小七度音程共有三个;减七度音程有一个。

如果你知道音程转位概念,这个问题就很容易解答——只需要计算有多少个不同的二度音程即可(二度音程与七度音程互为转位音程)。
首先大七度的转位音程是小二度,小七度的转位音程是大二度,减七度的转位音程是增二度。那么在一个音阶中,互为转位关系的音程数量总是一致的。即音阶中有几个大二度就有几个小七度;有几个小二度就有几个大七度。。。。。
在和声大小调的音阶中,半音关系的音级一共有三对(34级、56级和78级),则这三对音中间各形成一个小二度音程,共有三个小二度音程,那么小二度音程的转位音程大七度音程也必然有三个;增二度音程有一个,则增二度的转位音程减七度也必然只有一个。
在一个八度音区内,邻音间隔(二度音程)共七个。大小调和声音阶中,除去三个小二度和一个增二度的邻音间隔,剩下的,就是三个全音的大二度音程了,则大二度音程的转位音程小七度音程,也是三个。

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