"lid" radical in Chinese characters (Kangxi radical 8)
亠
=
丶
+
一
:
Mnemonic symbol: 亠 looks like a beret. Tecumseh (t) is killing time in the Outhouse's kitchen (ou2) by playing a game. His goal is to blow a petal leaf (丶) into a beret (亠) by blowing air through a flute (一).
㇆
=
一
+
亅
:
Mnemonic symbol: ㇆ just looks like a plow.
Someone attached a flute to the top of a crowbar to create a new instrument. When the crowbar is bowed with a plow, the vibrations of the crowbar will transfer to the flute, which in turn is producing eerie sounds.