《宋书·志·卷十九》
乐官从容自若，所以称为太乐。 
乐官自如故为太乐。 
The music officials were calm and composed, so they were called Taile.
<s>[INST] Kindly elucidate the central themes in this passage in English: 乐官自如故为太乐。  [/INST] The music officials were calm and composed, so they were called Taile.</s>
Kindly elucidate the central themes in this passage in English: 乐官自如故为太乐。
user
The music officials were calm and composed, so they were called Taile.
assistant