perkusjons

Perkusjon (Norwegian for percussion) is a broad term describing the instruments and practices that produce sound primarily when struck, shaken, rubbed, or scraped. In musicology, the category encompasses a wide range of sounds and techniques and is usually divided into idiophones and membranophones, as outlined in the Hornbostel–Sachs system. Idiophones produce sound from the material itself, while membranophones rely on a vibrating membrane.

Perkusjon instruments are commonly described by pitch. Pitched percussion includes timpani, marimba, xylophone, vibraphone, and glockenspiel, which can be tuned to specific notes. Unpitched percussion includes drums such as snare, bass, and toms, as well as cymbals, tambourines, triangles, shakers, claves, and other handheld or mounted sound-makers. Some instruments span categories or are played in ensembles that mix pitched and unpitched elements, such as a drum kit or a set of tuned drums.

The repertoire and use of perkusjon are diverse. In classical orchestras and chamber groups, percussion adds color, rhythm, and texture, often requiring rapid instrument changes and extended techniques. In jazz, marching bands, and various world musics, percussion plays a central rhythmic role. Modern practice also incorporates electronic percussion and drum pads, expanding timbral and expressive possibilities beyond acoustic sources.

Notation and performance practice vary widely. Percussion parts may appear on multiple staves or be notated with diverse noteheads to indicate different instruments, pitches, and timbres. A performer commonly coordinates a roster of instruments within a single piece, switching rapidly between them as required.