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Articles 1 to 15 of 17

idée fixe

A term used by Berlioz for a recurring theme in his symphonic works. read more

idiophone

A generic term for instruments that, when they are struck, produce the sound themselves. read more

imitation

A polyphonic technique in which the melodic shape of one voice is repeated by another, usually at a different pitch; hence imitative counterpoint. read more

imitation mass

Mass in which movements are based on a single POLYPHONIC model. Such as a MOTETNor MADRIGAL, all of whose voices may be borrowed or reworked; also called "parody Mass" read more

impressionism

A term borrowed from painting to describe music that is intended to convey an impression (often of natural phenomena) rather than a dramatic or narrative idea. read more

impromptu

A short piece, usually for piano, that suggests improvisation. read more

improvisation (improvised)

Spontaneous performance without notated music, but often with reference to a tune or chord progression. read more

in nomine

Cantus FIRMUS, derived from the Benedictus of Taverner's Western Wynde Mass, used in sets of instrumental VARIATIONS by English composers. read more

incidental music

Music composed as a background to, or interlude in, a stage production. read more

indeterminacy

Freedom from a composer's NOTATIONAL prescription. read more

intermedio

Pastoral, allegorical, or mythological interlude of vocal and instrumental music performed before and between the acts of a spoken comedy or tragedy. read more

intermezzo

A brief comic work performed between the acts of a serious OPERA. read more

interval

The distance between two notes. read more

inversion

1 The rearrangement of the notes of a chord so that the lowest note is no longer the fundamental one. 2 The performance of a melody "upside-down", with the intervals from the starting note applied in the opposite direction. read more

isorhythm

A fourteenth-century technique read more


Glossary