《周礼·冬官考工记·筑氏&玉人》
凡蒙鼓皮，必须在启蛰那天。好鼓鼓皮上的漆痕一圈圈地如同积环。
凡冒鼓；必以启蛰之日，良鼓瑕如积环。
All drumheads must be covered on the day when insects wake from hibernation. The lacquer marks on the drumheads of good drums are arranged in circles like stacked rings.