《太平广记·卷二百零三·乐一》
有一年冬祭北郊，曹绍夔不知因为什么事由得罪了御史大员。这位御史大员以乐律不和为由治曹绍夔的罪。
御史怒绍夔，欲以乐不和为罪。
One year, during the winter sacrifice in the northern suburbs, Cao Shaokui offended an official of the Supervisory Historian for some reason. This official found Cao Shaokui guilty of discordant music.