The act of percussing, or striking one body against another; forcible collision, esp. such as gives a sound or report.
Hence: The effect of violent collision; vibratory shock; impression of sound on the ear.
The act of tapping or striking the surface of the body in order to learn the condition of the parts beneath by the sound emitted or the sensation imparted to the fingers. Percussion is said to be immediate if the blow is directly upon the body; if some interventing substance, as a pleximeter, is, used, it is called mediate.
I got in the school band and the school choir. It all hit me like a ton of bricks, everything just came out. I played percussion for a while, and stayed after school forever just tinkering around with different things, the clarinets and the violins. Quincy Jones
The thing about playing percussion is that you can create all these emotions that can be sometimes beautiful, sometimes really ugly, or sometimes sweet, sometimes as big as King Kong and so on. And so there can be a real riot out there, or it can be so refined. Evelyn Glennie