3 sentences

1. “合”是工尺谱中的一个基本音级。

   “ hé” shì gōng​chě​pǔ zhōng de yī gè jī​běn yīn jí.

   'He' is a basic note in the Gongche notation system.

   Source: Dong Chinese Dictionary

2. 在工尺谱中，‘凡’音对应简谱中的‘4’。

   zài gōng​chě​pǔ zhōng,‘fán’ yīn duì​yìng jiǎn​pǔ zhōng de‘4’.

   In Gongche notation, the note 'Fan' corresponds to '4' in numbered musical notation.

   Source: Dong Chinese Dictionary

3. 他看着手中的工尺谱，轻声唱出了尺这个音。

   tā kàn zhe shǒu zhōng de gōng​chě​pǔ, qīng​shēng chàng​chū le chě zhè​ge yīn.

   He looked at the Gongche notation in his hand and softly sang the note 'chi'.

   Source: Dong Chinese Dictionary