In music, a subject is the material, usually a recognizable melody, upon which part or all of a composition is based. In forms other than the fugue, this may be known as the theme.
In music, a subject is the material, usually a recognizable melody, upon which part or all of a composition is based. In forms other than the fugue, this may be known as the theme.
A subject may be perceivable as a complete musical expression in itself, separate from the work in which it is found. [2] In contrast to an idea or motif, a subject is usually a complete phrase or period. [3] The Encyclopédie Fasquelle defines a theme (subject) as "[a]ny element, motif, or small musical piece that has given rise to some variation becomes thereby a theme". [4]
Thematic changes and processes are often structurally important, and theorists such as Rudolph Reti have created analysis from a purely thematic perspective. [5] [6] Fred Lerdahl describes thematic relations as "associational" and thus outside his cognitive-based generative theory's scope of analysis. [7] [ clarification needed ]
Music based on a single theme is called monothematic, while music based on several themes is called polythematic. Most fugues are monothematic and most pieces in sonata form are polythematic. [8] In the exposition of a fugue, the principal theme (usually called the subject) is announced successively in each voice – sometimes in a transposed form.
In some compositions, a principal subject is announced and then a second melody, sometimes called a countersubject or secondary theme, may occur. When one of the sections in the exposition of a sonata-form movement consists of several themes or other material, defined by function and (usually) their tonality, rather than by melodic characteristics alone, the term theme group (or subject group) is sometimes used. [9] [1]
Music without subjects/themes, or without recognizable, repeating, and developing subjects/themes, is called athematic. Examples include the pre-twelve-tone or early atonal works of Arnold Schoenberg, Anton Webern, Alban Berg, and Alois Hába. Schoenberg once said that, "intoxicated by the enthusiasm of having freed music from the shackles of tonality, I had thought to find further liberty of expression. In fact, I … believed that now music could renounce motivic features and remain coherent and comprehensible nevertheless". [10] [ clarification needed ] Examples by Schoenberg include Erwartung . Examples in the works of later composers include Polyphonie X and Structures I by Pierre Boulez, Sonata for Two Pianos by Karel Goeyvaerts, and Punkte by Karlheinz Stockhausen. [11] [ clarification needed ]
In a fugue, when the first voice has completed the subject, and the second voice is playing the answer, the first voice usually continues by playing a new theme that is called the 'countersubject'. The countersubject usually contrasts with the subject/answer phrase shape.
In a fugue, a countersubject is "the continuation of counterpoint in the voice that began with the subject", occurring against the answer. [13] It is not usually regarded as an essential feature of fugue, however. [14]
The typical fugue opening resembles the following: [13]
Soprano voice:Answer Alto voice:Subject Countersubject
Since a countersubject may be used both above and below the answer, countersubjects are usually invertible, all perfect fifths inverting to perfect fourths which required resolution. [15]
In classical music, a fugue is a contrapuntal, polyphonic compositional technique in two or more voices, built on a subject that is introduced at the beginning in imitation, which recurs frequently throughout the course of the composition. It is not to be confused with a fuguing tune, which is a style of song popularized by and mostly limited to early American music and West Gallery music. A fugue usually has three main sections: an exposition, a development, and a final entry that contains the return of the subject in the fugue's tonic key. Fugues can also have episodes—parts of the fugue where new material is heard, based on the subject—a stretto, when the fugue's subject "overlaps" itself in different voices, or a recapitulation. A popular compositional technique in the Baroque era, the fugue was fundamental in showing mastery of harmony and tonality as it presented counterpoint.
Music theory is the study of the practices and possibilities of music. The Oxford Companion to Music describes three interrelated uses of the term "music theory": The first is the "rudiments", that are needed to understand music notation ; the second is learning scholars' views on music from antiquity to the present; the third is a sub-topic of musicology that "seeks to define processes and general principles in music". The musicological approach to theory differs from music analysis "in that it takes as its starting-point not the individual work or performance but the fundamental materials from which it is built."
Johann Pachelbel was a German composer, organist, and teacher who brought the south German organ schools to their peak. He composed a large body of sacred and secular music, and his contributions to the development of the chorale prelude and fugue have earned him a place among the most important composers of the middle Baroque era.
Sonata form is a musical structure generally consisting of three main sections: an exposition, a development, and a recapitulation. It has been used widely since the middle of the 18th century.
Musical analysis is the study of musical structure in either compositions or performances. According to music theorist Ian Bent, music analysis "is the means of answering directly the question 'How does it work?'". The method employed to answer this question, and indeed exactly what is meant by the question, differs from analyst to analyst, and according to the purpose of the analysis. According to Bent, "its emergence as an approach and method can be traced back to the 1750s. However it existed as a scholarly tool, albeit an auxiliary one, from the Middle Ages onwards."
Dreimal sieben Gedichte aus Albert Girauds "Pierrot lunaire", commonly known simply as Pierrot lunaire, Op. 21, is a melodrama by Arnold Schoenberg. It is a setting of 21 selected poems from Albert Giraud's cycle of the same name as translated into German by Otto Erich Hartleben. The work is written for reciter who delivers the poems in the Sprechstimme style accompanied by a small instrumental ensemble. Schoenberg had previously used a combination of spoken text with instrumental accompaniment, called "melodrama", in the summer-wind narrative of the Gurre-Lieder, which was a fashionable musical style popular at the end of the nineteenth century. Though the music is atonal, it does not employ Schoenberg's twelve-tone technique, which he did not use until 1921.
In music, texture is how the tempo, melodic, and harmonic materials are combined in a musical composition, determining the overall quality of the sound in a piece. The texture is often described in regard to the density, or thickness, and range, or width, between lowest and highest pitches, in relative terms as well as more specifically distinguished according to the number of voices, or parts, and the relationship between these voices. For example, a thick texture contains many 'layers' of instruments. One of these layers could be a string section or another brass. The thickness also is changed by the amount and the richness of the instruments playing the piece. The thickness varies from light to thick. A piece's texture may be changed by the number and character of parts playing at once, the timbre of the instruments or voices playing these parts and the harmony, tempo, and rhythms used. The types categorized by number and relationship of parts are analyzed and determined through the labeling of primary textural elements: primary melody (PM), secondary melody (SM), parallel supporting melody (PSM), static support (SS), harmonic support (HS), rhythmic support (RS), and harmonic and rhythmic support (HRS).
In music, a motif IPA: (/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.
The original Tristan chord is heard in the opening phrase of Richard Wagner's opera Tristan und Isolde as part of the leitmotif relating to Tristan. It is made up of the notes F, B, D♯, and G♯:
In music, an invention is a short composition in two-part counterpoint. Well-known examples are the fifteen inventions that make up the first half of Johann Sebastian Bach's Inventions and Sinfonias. Inventions are usually not performed in public, but serve as exercises for keyboard students, and as pedagogical exercises for composition students.
In music, especially Western popular music, a bridge is a contrasting section that prepares for the return of the original material section. In a piece in which the original material or melody is referred to as the "A" section, the bridge may be the third eight-bar phrase in a 32-bar form, or may be used more loosely in verse-chorus form, or, in a compound AABA form, used as a contrast to a full AABA section.
In music, the Italian term stretto has two distinct meanings:
In music, imitation is the repetition of a melody in a polyphonic texture shortly after its first appearance in a different voice. The melody may vary through transposition, inversion, or otherwise, but retain its original character. The intervals and rhythms of an imitation may be exact or modified; imitation occurs at varying distances relative to the first occurrence, and phrases may begin with voices in imitation before they freely go their own ways.
In music theory, voicing refers to two closely related concepts:
In music, a section is a complete, but not independent, musical idea. Types of sections include the introduction or intro, exposition, development, recapitulation, verse, chorus or refrain, conclusion, coda or outro, fadeout, bridge or interlude. In sectional forms such as binary, the larger unit (form) is built from various smaller clear-cut units (sections) in combination, analogous to stanzas in poetry or somewhat like stacking Lego.
In musical form and analysis, exposition is the initial presentation of the thematic material of a musical composition, movement, or section. The use of the term generally implies that the material will be developed or varied.
Thematic transformation is a musical technique in which a leitmotif, or theme, is developed by changing the theme by using permutation, augmentation, diminution, and fragmentation. It was primarily developed by Franz Liszt and Hector Berlioz. The technique is essentially one of variation. A basic theme is reprised throughout a musical work, but it undergoes constant transformations and disguises and is made to appear in several contrasting roles. However, the transformations of this theme will always serve the purpose of "unity within variety" that was the architectural role of sonata form in the classical symphony. The difference here is that thematic transformation can accommodate the dramatically charged phrases, highly coloured melodies and atmospheric harmonies favored by the Romantic composers, whereas sonata form was geared more toward the more objective characteristics of absolute music. Also, while thematic transformation is similar to variation, the effect is usually different since the transformed theme has a life of its own and is no longer a sibling to the original theme.
Rudolph Reti, also Réti, was a musical analyst, composer and pianist. He was the older brother of the chess master Richard Réti, but unlike his brother, Reti did not write his surname with an acute accent on the 'e'.
In music, Hauptstimme or Hauptsatz is the main voice, chief part; i.e., the contrapuntal or melodic line of primary importance, in opposition to Nebenstimme. Nebenstimme or Seitensatz is the secondary part; i.e., a secondary contrapuntal or melodic part, always occurring simultaneously with, and subsidiary to, the Hauptstimme. The practice of marking the primary voice within the musical score/parts was invented by Arnold Schoenberg.
The six sonatas for violin and obbligato harpsichord BWV 1014–1019 by Johann Sebastian Bach are works in trio sonata form, with the two upper parts in the harpsichord and violin over a bass line supplied by the harpsichord and an optional viola da gamba. Unlike baroque sonatas for solo instrument and continuo, where the realisation of the figured bass was left to the discretion of the performer, the keyboard part in the sonatas was almost entirely specified by Bach. They were probably mostly composed during Bach's final years in Cöthen between 1720 and 1723, before he moved to Leipzig. The extant sources for the collection span the whole of Bach's period in Leipzig, during which time he continued to make changes to the score.
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