For music of the Classical period, "interpolation" is defined in the context of a musical sentence or

period Period may refer to: Common uses * Era, a length or span of time * Full stop (or period), a punctuation mark Arts, entertainment, and media * Period (music), a concept in musical composition * Periodic sentence (or rhetorical period), a concept ...

as "unrelated material inserted between two logically succeeding functions". This device is commonly used to extend what would normally be a regular

phrase In syntax and grammar, a phrase is a group of words or singular word acting as a grammatical unit. For instance, the English expression "the very happy squirrel" is a noun phrase which contains the adjective phrase "very happy". Phrases can consi ...

into an irregular and extended phrase. Such expansion by interpolation is achieved by the addition of extra music in the middle of a phrase (commonly through the use of

sequence In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members (also called ''elements'', or ''terms''). The number of elements (possibly infinite) is calle ...

). A clear example exists in the second movement of Mozart's Piano Sonata No. 10, K.330. Formerly, in the sung portions of the

Mass Mass is an intrinsic property of a body. It was traditionally believed to be related to the quantity of matter in a physical body, until the discovery of the atom and particle physics. It was found that different atoms and different elementar ...

, such as the

introit The Introit (from Latin: ''introitus'', "entrance") is part of the opening of the liturgical celebration of the Eucharist for many Christian denominations. In its most complete version, it consists of an antiphon, psalm verse and ''Gloria Patri'', ...

kyrie Kyrie, a transliteration of Greek , vocative case of (''Kyrios''), is a common name of an important prayer of Christian liturgy, also called the Kyrie eleison ( ; ). In the Bible The prayer, "Kyrie, eleison," "Lord, have mercy" derives fr ...

, it was permissible, especially during the medieval period, to amplify a liturgical formula by interpolating a "farse" (from Medieval Latin ''farsa'', forcemeat), also called "

trope Trope or tropes may refer to: Arts, entertainment, and media * Trope (cinema), a cinematic convention for conveying a concept * Trope (literature), a figure of speech or common literary device * Trope (music), any of a variety of different things ...

".''Catholic Encyclopedia: Trope''.
New Advent. This might consist of an explanatory phrase or verse, usually in the form of an addition or paraphrase, often in the

vernacular A vernacular or vernacular language is in contrast with a "standard language". It refers to the language or dialect that is spoken by people that are inhabiting a particular country or region. The vernacular is typically the native language, n ...

. In the classical suite, consisting strictly of the

allemande An ''allemande'' (''allemanda'', ''almain(e)'', or ''alman(d)'', French: "German (dance)") is a Renaissance and Baroque dance, and one of the most common instrumental dance styles in Baroque music, with examples by Couperin, Purcell, Bach a ...

courante The ''courante'', ''corrente'', ''coranto'' and ''corant'' are some of the names given to a family of triple metre dances from the late Renaissance and the Baroque era. In a Baroque dance suite an Italian or French courante is typically paired ...

sarabande The sarabande (from es, zarabanda) is a dance in triple metre, or the music written for such a dance. History The Sarabande evolved from a Spanish dance with Arab influences, danced by a lively double line of couples with castanets. A dance cal ...

and

gigue The gigue (; ) or giga () is a lively baroque dance originating from the English jig. It was imported into France in the mid-17th centuryBellingham, Jane"gigue."''The Oxford Companion to Music''. Ed. Alison Latham. Oxford Music Online. 6 July 200 ...

, composers often interpolated a

gavotte The gavotte (also gavot, gavote, or gavotta) is a French dance, taking its name from a folk dance of the Gavot, the people of the Pays de Gap region of Dauphiné in the southeast of France, where the dance originated, according to one source. Ac ...

bourrée The bourrée ( oc, borrèia; also in England, borry or bore) is a dance of French origin and the words and music that accompany it. The bourrée resembles the gavotte in that it is in double time and often has a dactylic rhythm. However, it is ...

minuet A minuet (; also spelled menuet) is a social dance of French origin for two people, usually in time. The English word was adapted from the Italian ''minuetto'' and the French ''menuet''. The term also describes the musical form that accompa ...

, musette or

passepied The passepied (, "pass-foot", from a characteristic dance step) is a French court dance. Originating as a kind of Breton branle, it was adapted to courtly use in the 16th century and is found frequently in 18th-century French opera and ballet, ...

. Interpolation (also known as replayed), especially in

20th-century music The following Wikipedia articles deal with 20th-century music. Western art music Main articles *20th-century classical music *Contemporary classical music, covering the period Sub-topics *Aleatoric music *Electronic music *Experimental music *Ex ...

and later, is an abrupt change of musical elements, with the (almost immediate) resumption of the main

theme Theme or themes may refer to: * Theme (arts), the unifying subject or idea of the type of visual work * Theme (Byzantine district), an administrative district in the Byzantine Empire governed by a Strategos * Theme (computing), a custom graphical ...

idea In common usage and in philosophy, ideas are the results of thought. Also in philosophy, ideas can also be mental representational images of some object. Many philosophers have considered ideas to be a fundamental ontological category of being ...

.Wittlich, Gary E. (ed.) (1975). ''Aspects of Twentieth-century Music'', p.48 n.12 and p.49. Englewood Cliffs, N.J.: Prentice-Hall. . Pieces that are cited as featuring interpolation, among other

techniques Technique or techniques may refer to: Music * The Techniques, a Jamaican rocksteady vocal group of the 1960s *Technique (band), a British female synth pop band in the 1990s * ''Technique'' (album), by New Order, 1989 * ''Techniques'' (album), by M ...

, are ''Music for Brass Quintet'' by

Gunther Schuller Gunther Alexander Schuller (November 22, 1925June 21, 2015) was an American composer, conductor, horn player, author, historian, educator, publisher, and jazz musician. Biography and works Early years Schuller was born in Queens, New York City, ...

and ''Threnody to the Victims of Hiroshima'' by

Krzysztof Penderecki Krzysztof Eugeniusz Penderecki (; 23 November 1933 – 29 March 2020) was a Polish composer and conductor. His best known works include ''Threnody to the Victims of Hiroshima'', Symphony No. 3, his '' St Luke Passion'', ''Polish Requiem'', ''A ...

(both 1960–61).

References

{{reflist Musical techniques Classical

See also

References