Glass marimba

Single box resonators can be constructed from wood, glass, or metal among a variety of materials.

Individual resonators can be made from gourds, wood, bamboo, clay, glass, pvc, or metal, to name a few.

Tuning is accomplished most commonly by removing glass from the end of the key which causes the note to go up.

The keys are best supported on a pad of open cell foam mounted to a thin piece of wood and encased in cloth.

Another method glues a piece of hook-and-loop hook tape to the bottom of the bars at the node points, and strips of felt along the top of the resonator box.