You can kind of move around by using sequence.

旋律模进可以用来调整
You can get to different places by using sequence.

可以借助旋律模进来转换
So it tends to be contrapuntal

插句是对位的
because it's using little motives from the theme.

因为它使用了主题中的部分动机
It modulates,moves around a lot,

通过转调上下变化
goes to different keys, sounds a bit unsettled.

来达到不同的调听起来不太稳定
If you were to think back on sonata-allegro form

回想一下奏鸣曲式
and try to find an analog for sonata-allegro form in the fugue episode,

其中哪一部分和赋格的插句相似
what would it be?

哪部分
What is the episode of the fugue like in sonata-allegro form?

哪一部分和插句相似
Roger.

罗杰
The development?

发展部