ko연주하는 곡에 틀린 데가 있으면, 주랑이 돌아본다.
ja奏でる曲に誤りがあれば、周郎が振り返る。
The scene behind the words
A rhyme coined by his contemporaries: even three rounds of wine in, Zhou Yu never failed to catch a wrong note — and turn to look. It preserves the fact that the grand commander of Red Cliffs was also the finest musical ear of his age, his elegance and perfectionism in a single line, endlessly quoted by later poets.
Source: Records of the Three Kingdoms — Zhou Yu (a popular rhyme)