Abstract: A percussion musical instrument produces a "crashing" sound using a series of stacked metal strips or leaves of a specific configuration. The leaves are relatively thin, upwardly arched or bowed, arranged in alternating criss-cross configuration, and each includes a twist about a generally longitudinal axis. The twist in each leaf is in an opposite direction to the twist in the adjacent leaf or leaves. A base supports the stack of ribbons loosely, so that when the stack is struck downwardly and centrally, a decided sound of relatively long sustain will be produced.