《仪礼·乡射礼》
吹笙者入内，站立在磬的东边，面朝西。
笙入，立于县中，西面。
The sheng player enters and stands on the east side of the qing, facing west.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 笙入，立于县中，西面。 [/INST] The sheng player enters and stands on the east side of the qing, facing west.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 笙入，立于县中，西面。
user
The sheng player enters and stands on the east side of the qing, facing west.
assistant