- James Blades
- and Robert Anderson
Concussion idiophones consisting of two or more objects in the form of sticks, plaques or vessels of wood, bone, ivory, nutshells, marine shells, etc. (For details of the Hornbostel-Sachs classification seeIdiophone.) They may be hinged together at one end, or two may be hinged to a central piece. Specimens from prehistoric times onwards differ little from those still used by certain tribal groups. Among the few instruments of the Australian aborigines are clappers in the form of clapsticks and boomerangs. This suggests the early use of weapons and missiles as clappers and possibly (with the rattle) as the first substitute for such pre-instrumental music as stamping, hand-clapping and body slapping....