|BOO (Bamboo Marimba)
||1955-1956, at Gate 5, Sausalito, California.
||6 feet broad at the floor, decreasing to 4 feet at the top; close to 4 feet high.
||Philippine bamboo, ranging from 4.25 to 2.75 inches outside diameter, mounted on foam rubber. The frame is of oak, and gum plywood.
||64 sections of bamboo, each with one closed end, and a tongue cut in the open end for the same natural frequency as its air column. A dry percussive sound, with one prominent inharmonic overtone. The range is approximately from the B-flat below middle C to the second F above. Played with felted sticks and small mallets on the edges of the tongues. The instrument is based upon experiments made by Bill Loughborough.