Yeah,it's regular, and with-- each chord was holding for two beats there in duple meter.

对，这是规则变化，每个和弦都维持两拍，这里一小节两拍。

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We've heard I guess it was Badly Drawn Boy--Boys there with a two-chord chord progression.

我们已经听过貌似是涂鸦男孩，他们是二和弦进行。

耶鲁公开课 - 聆听音乐课程节选

They just elongated each measure by its same amount so we had harmony changing on each measure, and then in that middle section each chord was changing at the rate of two measures.

但它的基本形式没有改变，而在每个小节中和声都发生了改变，接着在中间的乐节，每个和弦每两小节改变一次。

耶鲁公开课 - 聆听音乐课程节选