What do you mean when you are in pentatonic?

Wu Yin's explanation

[Fifteenth in hexadecimal]

Sixty Jiazi has been ranked 15th since the year of Wuyin. (This refers to the twenty-three years of Qianlong, that is, 1758. )? Qing? Yuan Mei's Poems for My Sister

Word decomposition

The interpretation of e is the fifth place in the heavens and the earth of e, as a synonym for the fifth place in order. Radical: Ge; Yin explained that the third place was the tiger: Yin Shi. Used for timing: Yin Shi (3 pm to 5 pm). Jing: (respectfully). Fear (awe). Radical: rice.