He's making exactly the same disclaimer that he had made in Sonnet Seven.

他发表了和他的十四行诗第七首中同样的免责声明。

耶鲁公开课 - 弥尔顿课程节选

The oboe may have the seventh partial very strong and the third partial very strong whereas the trumpet-- I'm just making all of this up of course-- the trumpet may have the second partial and the fourth partial and the sixth partial.

双簧管的第七泛音,和第三泛音都很强,而小号,我只是为上课需要假设的,小号可能是第二泛音,第四和第六泛音比较强

耶鲁公开课 - 聆听音乐课程节选