Theme (music) in the context of "Cell (music)"

Repetition is important in music, where sounds or sequences are often repeated. It may be called restatement, such as the restatement of a theme. While it plays a role in all music, with noise and musical tones lying along a spectrum from irregular to periodic sounds, it is especially prominent in specific styles.

In music, an arrangement is a musical adaptation of an existing composition. Differences from the original composition may include reharmonization, melodic paraphrasing, orchestration, or formal development. Arranging differs from orchestration in that the latter process is limited to the assignment of notes to instruments for performance by an orchestra, concert band, or other musical ensemble. Arranging "involves adding compositional techniques, such as new thematic material for introductions, transitions, or modulations, and endings. Arranging is the art of giving an existing melody musical variety". In jazz, a memorized (unwritten) arrangement of a new or pre-existing composition is known as a head arrangement.

In music, a motif (/moʊˈtiːf/ ) or motive is a short musical idea, a salient recurring figure, musical fragment or succession of notes that has some special importance in or is characteristic of a composition. The motif is the smallest structural unit possessing thematic identity.

A leitmotif or Leitmotiv (/ˌlaɪtmoʊˈtiːf/) is a "short, recurring musical phrase" associated with a particular person, place, or idea. It is closely related to the musical concepts of idée fixe or motto-theme. The spelling leitmotif is a partial anglicization of the German Leitmotiv (IPA: [ˈlaɪtmoˌtiːf] ), literally meaning "leading motif", or "guiding motif". A musical motif has been defined as a "short musical idea ... melodic, harmonic, or rhythmic, or all three", a salient recurring figure, musical fragment or succession of notes that has some special importance in or is characteristic of a composition: "the smallest structural unit possessing thematic identity".

In particular, such a motif should be "clearly identified so as to retain its identity if modified on subsequent appearances" whether such modification be in terms of rhythm, harmony, orchestration or accompaniment. It may also be "combined with other leitmotifs to suggest a new dramatic condition" or development. The technique is notably associated with the operas of Richard Wagner, and most especially his Der Ring des Nibelungen, although he was not its originator and did not employ the word in connection with his work.

Mysterioso Pizzicato, also known as The Villain or The Villain's Theme, is a piece of music whose earliest known publication was in 1914, when it appeared in an early collection of incidental photoplay music aimed at accompanists for silent films. The main motif, with minor variations, has become a well-known and widely used device (or "cliche"), incorporated into various other musical works, and the scores of films, TV programmes and video games, as well as unnotated indications in film scripts.

Both a character theme (the "traditional 'bad-guy' cue") and situation theme, it is used to herald foreboding or disaster and to represent villainy, sneakiness, or stealth. A version of this theme is contrasted with themes such as the hero's (Play).

The rondo or rondeau is a musical form that contains a principal theme (sometimes called the "refrain") which alternates with one or more contrasting themes (generally called "episodes", but also referred to as "digressions" or "couplets"). Some possible patterns include: ABACA, ABACAB, ABACBA, or ABACABA (with the letter 'A' representing the refrain).

The rondo form emerged in the Baroque period and became increasingly popular during the Classical period. The earliest examples of compositions employing rondo form are found within Italian operatic arias and choruses from the first years of the 17th century. These examples use a multi-couplet rondo or "chain rondo" (ABACAD) known as the Italian rondo. Rondo form, also known in English by its French spelling rondeau, should not be confused with the unrelated but similarly-named forme fixe rondeau, a 14th- and 15th-century French poetic and chanson form.

In music, the introduction is a passage or section which opens a movement or a separate piece, preceding the theme or lyrics. In popular music, this is often known as the song intro or just the intro. The introduction establishes melodic, harmonic or rhythmic material related to the main body of a piece.

Introductions may consist of an ostinato that is used in the following music, an important chord or progression that establishes the tonality and groove for the following music, or they may be important but disguised or out-of-context motivic or thematic material. As such, the introduction may be the first statement of primary or other important material, may be related to but different from the primary or other important material, or may bear little relation to any other material.

A transition is a passage of music composed to link one section of music to another. Transitions often function as a moment of transformation and may, or may not in themselves, introduce new, musical material.

Often in music, the transition is the middle section or formal function, while the main theme is the beginning, and the subordinate theme is the ending. It may traditionally be a part of the sonata form's exposition in which the composer modulates from the key of the first subject to the key of the second, though many Classical era works move straight from first to second subject groups without any transition.

In music, the conclusion is the ending of a composition and may take the form of a coda or outro.

Pieces using sonata form typically use the recapitulation to conclude a piece, providing closure through the repetition of thematic material from the exposition in the tonic key. In all musical forms other techniques include "altogether unexpected digressions just as a work is drawing to its close, followed by a return...to a consequently more emphatic confirmation of the structural relations implied in the body of the work."