music Music is generally defined as the art of arranging sound to create some combination of form, harmony, melody, rhythm or otherwise expressive content. Exact definitions of music vary considerably around the world, though it is an aspect ...

, a section is a complete, but not independent,

musical idea In music, a motif IPA: ( /moʊˈtiːf/) (also motive) is a short musical phrase, a salient recurring figure, musical fragment or succession of notes that has some special importance in or is characteristic of a composition: "The motive ...

. Types of sections include the

introduction Introduction, The Introduction, Intro, or The Intro may refer to: General use * Introduction (music), an opening section of a piece of music * Introduction (writing), a beginning section to a book, article or essay which states its purpose and g ...

or intro,

exposition Exposition (also the French for exhibition) may refer to: *Universal exposition or World's Fair * Expository writing ** Exposition (narrative) * Exposition (music) *Trade fair A trade fair, also known as trade show, trade exhibition, or trade e ...

development Development or developing may refer to: Arts *Development hell, when a project is stuck in development *Filmmaking, development phase, including finance and budgeting *Development (music), the process thematic material is reshaped * Photograph ...

, recapitulation, verse,

chorus Chorus may refer to: Music * Chorus (song) or refrain, line or lines that are repeated in music or in verse * Chorus effect, the perception of similar sounds from multiple sources as a single, richer sound * Chorus form, song in which all verse ...

refrain A refrain (from Vulgar Latin ''refringere'', "to repeat", and later from Old French ''refraindre'') is the line or lines that are repeated in music or in poetry — the "chorus" of a song. Poetic fixed forms that feature refrains include the vi ...

, conclusion, coda or outro, fadeout,

bridge A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually somethi ...

interlude Interlude may refer to: *a short play or, in general, any representation between parts of a larger stage production *''Entr'acte'', a piece of music performed between acts of a theatrical production *a section in a movement of a musical piece, se ...

. In sectional forms such as

binary Binary may refer to: Science and technology Mathematics * Binary number, a representation of numbers using only two digits (0 and 1) * Binary function, a function that takes two arguments * Binary operation, a mathematical operation that ta ...

, the larger unit (

form Form is the shape, visual appearance, or configuration of an object. In a wider sense, the form is the way something happens. Form also refers to: *Form (document), a document (printed or electronic) with spaces in which to write or enter data ...

) is built from various smaller clear-cut units (sections) in combination, analogous to stanzas in poetry or somewhat like stacking Lego. Some well known songs consist of only one or two sections, for example "

Jingle Bells "Jingle Bells" is one of the best-known and most commonly sung American songs in the world. It was written by James Lord Pierpont (1822–1893) and published under the title "The One Horse Open Sleigh" in September 1857. It has been claimed t ...

" commonly contains verses ("Dashing through the snow...") and choruses ("Oh, jingle bells..."). It may contain "auxiliary members" such as an introduction and/or outro, especially when accompanied by instruments (the piano starts and then: "Dashing..."). A section is, "a major structural unit perceived as the result of the coincidence of relatively large numbers of structural phenomena." An episode may also refer to a section. This term is particularly common in analysis of a

fugue In music, a fugue () is a contrapuntal compositional technique in two or more voices, built on a subject (a musical theme) that is introduced at the beginning in imitation (repetition at different pitches) and which recurs frequently in the c ...

to designate sections during which a fugue subject is not heard (though it may still draw on motifs from the subject). After the opening

, fugues generally follow a plan of alternating thematic statements and episodes. A passage is a musical idea that may or may not be complete or independent. For example, fill,

riff A riff is a repeated chord progression or refrain in music (also known as an ostinato figure in classical music); it is a pattern, or melody, often played by the rhythm section instruments or solo instrument, that forms the basis or acc ...

, and all sections. Musical material is any musical idea, complete or not, independent or not, including motifs.

Sources

{{Musical form Formal sections in music analysis Auxiliary members

See also

Sources