缶: the tin can

缶 is a container, jar, or tin can.  I don't get it either.  But maybe the stroke at the upper left is the opened lid.
陶, pottery:  Beyond the terraced hills ⻖, there's a kiln 勹, and a container cooking inside.  Yep, that's how you make pottery.
謡, ballad:   Song you might sing while carrying your containers by hand.  (Keeps your mind off how heavy they are, maybe.)

缶陶謡