1 sentence

1. 在五音“宫商角徵羽”中，宫音居首。

   zài wǔ​yīn“ gōng shāng jué zhǐ yǔ” zhōng, gōng​yīn jū​shǒu.

   Among the five notes 'Gong, Shang, Jue, Zhi, Yu', Gong is the first.

   Source: Dong Chinese Dictionary