I think it's possible to see that "they" as the sort of general forces of modernity, of everything at odds with the aristocratic culture Yeats and these women shared, inhabited.

我认为可以把它们看作“,某种现代性的力量，所有和贵族文化不一致的,叶芝和两个女人所共有的。

耶鲁公开课 - 现代诗歌课程节选

They seem to be going somewhere and there's this sort of force of pull or gravity in music having to do with some chords wanting to go to other chords.

和弦向某一个方向发展，就像有一股力量拉着它们,或者说音乐的重力吸引着它们，让一些和弦想行进成为另一些和弦。

耶鲁公开课 - 聆听音乐课程节选

So here in the G Minor Symphony we feel as--oh, it's so full of tension, angst,anxiety, perhaps passion, it's driving somewhere, and one of the things that's driving it is its accelerating rate of harmonic change.

在G小调交响曲里我们能感觉到，哦，音乐中充满了紧张，揪心，焦虑，甚至激情，这些感情正在向某个方向涌去，吸引它们的力量之一就是不断加速的和声变化率。

耶鲁公开课 - 聆听音乐课程节选