How does the drums work?
Drums work when you hit the drumhead with the drumstick. Thus causing the drumhead to vibrate. The vibration passes through the air hole which causes the drum to be louder. If you’d cover up the air hole the drum is very quiet. Drum can work without a head on the bottom of the drum however this changes the sound of the drum. Some people like that sound. Some don’t, I personally do not.