《北史·列传·卷三十七》
郑译便献上新谱写的音乐，十二月各用一件笙，每件笙用十六支簧管。
译乃献新乐，十二月各一笙，每笙用十六管。
Zheng Yi thus offered his newly compiled music, using one bamboo pipe organ for each of the twelve months, and each bamboo pipe organ had sixteen pipes.