来自《耶鲁大学开放课程：聆听音乐第14集第14集》

What would you imagine we're going to move to?

你们想象下我们将会行进到哪里呢
A minor key and it's probably, again,

很有可能是转到一个小调上
although we don't hear it

虽然我们还没听过
I don't hear it we don't hear it,

我没听过我们都没听过
it's probably going to be the relative minor

但很有可能会转到关系小调上
because it's just simpler structurally to operate that way.

因为这是相当简单的结构性处理手法
So let's listen now to the next variation here,

那么让我们来听下一个变奏吧
but something very interesting happens.

有一件非常有趣的事情发生了
He's referencing another form.

贝多芬在这里引入了另一种曲式
He's incorporating another form

并把这种曲式
in the composition as a variation,

作为乐曲中的一段变奏
so what is the other form now?

那是什么曲式呢