Untuned percussion

A common sub-classification of percussion instruments that is comprised of instruments that are typically used to perform the rhythmic foundations of a composition. Most of these instruments are untuned (unable to produce a specific pitch). They are notated with normal rhythmic notation, but each instrument is placed on a separate line. Untuned percussion instruments include: Bass Drum, Crash Cymbals, Gong, Snare Drum, Suspended Cymbal, Tam-tam, Tenor Drum, Tom-Toms.