Music

A

Percussion

Instruments of the percussion family are undoubtedly found in the greatest number of musical cultures. Percussion instruments are referred to as membranophones if they produce sound through the vibrations of a stretched skin or other membrane. They are called idiophones if they produce sound through their natural resonance when struck, rubbed, plucked, or shaken. Drums are membranophones; hollowed logs, bells, gongs, xylophones, and pianos are examples of idiophones.

B

Wind

Wind instruments, or aerophones, produce sound in several ways. The performer’s lips may produce the vibration, as with brass instruments. The vibration may be produced by a column of air split across a sharp edge (flutes, pipes, whistles). Or the vibration may be produced by one or two reeds, as with instruments such as the clarinet, saxophone, oboe, bassoon, or the Korean oboe called a piri.

C

String

The string, or chordophone, family has several branches. In one branch, which includes the zither, dulcimer, and Japanese koto, strings are stretched across a flat body. In a second branch, each instrument has a neck, for example the lute, guitar, Indian sitar, Arabic ‘ud, or violin. A third branch includes plucked instruments with multiple strings, such as the lyre or the harp, where each string produces only one pitch.

D

Electronic

Electronic instrument, or electrophone, refers broadly to any means of generating, modifying, or amplifying musical sounds electronically. Thus any instrument played through an amplifier becomes an electronic instrument. The term most often refers to instruments that generate sound electronically.

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Although there were experimental electronic instruments in the early 20th century, sound synthesizers and computer-based music composition, arrangement, recording, and distribution have only in recent years become accessible to a broad segment of the population. See Musical Instruments.

V

Form

The overall shape or architecture of music is referred to as its musical form. We will begin with a brief discussion of form in Western art music, and then compare this with an example of form in non-Western music.

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