Now just working with the four-note motive here-- A strange little dissonant chord there resolving to consonance.

现在四音符的动机出现,这有一段有点不和谐的和弦,解构成和谐音

耶鲁公开课 - 聆听音乐课程节选

Here for example we have the pitch C and either note above or below it is dissonant.

如果说这里用C音，那么不管是和它上面还是下面的音符搭配都不和谐。

耶鲁公开课 - 聆听音乐课程节选