Percussion instrument often used in the
wind band setting; it features a small
wooden curved bell on the end of a metal prong with a large wooden weight opposing it.
As the weight
wiggles, a sound not unlike a
rattlesnake comes out of the vibra-slap, with a slightly arching
crescendo at the very beginning and gradually dying away at the end.
The preferred playing and attack technique is slapping the weight enough to get the sound going.