一孔录The video for this lecture is still in production. For now this page gives the text, the base-edition pages, a recording and a translation.
匏土革，木石金，絲與竹，乃八音。曰平上，曰去入，此四聲，宜調協。TrTranslation
匏土革，木石金，絲與竹，乃八音。
Gourd, clay and hide, wood, stone and metal, silk and bamboo: these are the eight sounds.
曰平上，曰去入，此四聲，宜調協。
The level and the rising, the departing and the entering: these four tones should be kept in harmony.
Draft translation; it will be revised when the lecture is filmed.
Compared with Wang Xiang's edition
Group 26 曰平上，曰去入，此四聲，宜調協。
Not in Wang Xiang's edition. The group on the four tones was added in later popular editions; the lecture notes follow those.
From the Father's Lecture Notes
Both groups are about sound: one the sound of instruments, one the sound of speech. The eight sounds are not eight pitches but eight materials; an instrument belongs to whatever it is made of. The four tones are the rise and fall of speech, which the child uses every day without being told it has a name.
Translated from Yikonglu's Father's Lecture Notes for the Three Character Classic, written for a parent teaching a child.
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