So he ends up only playing half the notes.

所以他后来就只能演奏二分音符。

We go to The Half Note and wait there for Moonwind.

我们去二分音符，在那里等月风。

How can we get a half note that actually equals now three quarter notes?

我们怎么加上一个二分音符从而正好代表了三个四分音符呢？

So, whole note, half note, semibreve, minim.

所以，全音符，二分音符，半音符，最小音符。

Half the length of that one is a half note.

那个长度的一半是二分音符。

They can be whole notes , half notes, quarter notes or eighth notes.

它们可以是全音符、二分音符、四分音符或八分音符。

So, that's a whole note;so this one is half the length, so it's logical that the American system calls it a half note because it's half the length of the one, there.

所以，这是一个完整的音符； 所以这个是长度的一半，所以美国系统称它为二分音符是合乎逻辑的， 因为它是那个长度的一半。