2 sentences for 角 (jué — musical note)

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

2. 这一段优美的旋律以角音开头，听起来十分清新舒畅。

   zhè yī duàn yōu​měi de xuán​lǜ yǐ jué yīn kāi​tóu, tīng qi​lai shí​fēn qīng​xīn shū​chàng.

   This beautiful melody begins with the 'jue' note, sounding very fresh and pleasant.

   Source: Dong Chinese Dictionary