| tape music | Electronically generated sounds that have been recorded on tape and manipulated to create a music composition.
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| electronic synthesizer | An electronic sound generator capable of producing, imitating, and altering sounds.
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| oscillators | The means by which pitch is determined on an electronic synthesizer.
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| fingerboard | A board on the synthesizer, uninterrupted by keys or frets, allowing a player to slide through a continuum of pitches.
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| filters | On a synthesizer, electronic instruments that filter high and low pitches from a wide band of sound to produce a narrow band of melody.
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| total serialism | Also called serialization or serial technique. Application of twelve-tone concepts to other aspects of a composition (timbres or durations, for example), which, like tones, may be arranged into series and repeated.
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| aleatory music | Sometimes referred to as chance or indeterminate music, aleatory music leaves significant decisions to the performer of a composition, or to chance. An extreme example of aleatory music may be called random music.
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| theater score | A concert piece that includes visual and dramatic elements as well as music.
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