How does tubular bells make sound?

Answer:
Sound is vibration (of air ... as we humans perceive it).
If a bell, tubular or otherwise, is made to vibrate then it will cause the adjacent air to vibrate ... and we call it sound.
First answer by Johnellishartford. Last edit by Johnellishartford. Contributor trust: 702 [recommend contributor recommended]. Question popularity: 1 [recommend question].