Musical notation was conceived for the C major scale and each line and space represents a note in this scale.

乐谱为C大音阶而构思，在这个音阶中的每一个线和间都代表一个音符。

《柯林斯英汉双解大词典》

Let's start with a major scale on a c.

让我们从C开始一个大调音阶。

youdao

Let's start with a major scale on a c.

让我们从C开始一个大调音阶。

youdao