Instruments that are sounded by striking, shaking, plucking, or scraping. All instruments such as drums and bells fall into this category. The formal classifications of most Percussion instruments are either Idiophones ( instruments that vibrate when struck, shook, plucked, or scraped) or Membranophones ( instruments that have a stretched membrane that vibrates when struck, shook, or rubbed). Informally, Percussion instruments may be further divided into those instruments that produce a definite pitch and those that do not. Some whistles ( aerophones) are also included in this category of instruments because they tend to be considered sound effects rather than serious instruments.TABLE OF COMMON PERCUSSION INSTRUMENTSTuned PercussionUntuned PercussionAuxiliary PercussionLatin PercussionDrum KitAntique CymbalsBell LyreCelesteChimesCrotalesGlockenspielMarimbaOrchestra BellsSteel DrumsTimpaniVibraphoneXylophoneBass DrumCrash CymbalsGongSnare DrumSuspended CymbalTam-tamTenor DrumTom-TomsAcme Siren (Police Siren)Bird WhistleBoat WhistleFinger CymbalsFlex-A-ToneJew's HarpMarching machinePolice WhistleRatchetRattleSandpaper BlocksSlapstickSleigh BellsTambourineTemple BlocksThunder MachineTrain WhistleTriangleVibra-SlapWind MachineWood BlockAgogo BellsBongo DrumsCabacaCastanetsClavesCongaCowbellGueiroMaracasScraperTimbalesKick DrumHi-HatRide CymbalSizzle CymbalSnare DrumSplash CymbalTom-TomsAlso [Fr.] batterie; [Fr.] instruments a percussion; [Ger.] Schlagzeug; [Ger.] Schlaginstrumente; [It.] percussione; [It.] batteria; [It.] stromenti a percossa; [Sp.] percusion; [Sp.] bateria.See also Tuned Percussion; Untuned Percussion; Auxiliary Percussion; Latin Percussion; Drum Kit.See also Idiophones; Membranophones.