I'm making a tongue drum. I don't have any plans, but am just going off of some pictures I've seen.
For those of you that might know something about them:
Does the box need a bottom, or does it work fine for it to have an open bottom?
What are my options if some of the tongues sound "dead"? I'm thinking of thinning it out from underneath near the base of the tongue to make it more flexible. Do you think this would work?