Acoustic treatment

Particle motion in various shapes, mass, density and material is what makes for the change in the solids that causes the air molecules to move and collide. That collision is what we hear..shear wave and particle wave motion in rubber or steel is the precurrsor to the audible. Their different particle motion and velocity potential stimulates the air and makes their resulting sound output indiviual and distinct. When you have different materials like the Resonators touching a different surface shape like drywall..then you will have shear waves traveling traveling in different direction and speeds changing the air motion and vibrational speed which again makes for a different sound result..Look some more Geoff.
Tom

You’re stuck in a rut. You need professional help. Deprogrammers are standing by 😳 😳 😳 😳

Sounds as if you don't understand nor care to learn about the origins of sounds in materials and the resulting sound in air. Tom

Deprogrammers are standing by. You can’t use that shear velocity baloney for everything. You can’t use it for isolation, much less tiny little bowls. It’s a nice day. Go out and get drunk.

“If I could explain it the average person they wouldn’t have given me the Nobel prize.”

The tiny bowls shape and material determines the shear wave pattern and velocity that makes the sound changes in the air. Copper, Silver, Gold and Platinum all have a diferent shear speeds and they all result in a different acoustic out come.
Put a stone or diamond if front of all that hang it on a wall and you have an acoustic resonator. All starts with material or materials and shape..keep looking. Tom