In
music
Music is generally defined as the The arts, art of arranging sound to create some combination of Musical form, form, harmony, melody, rhythm or otherwise Musical expression, expressive content. Exact definition of music, definitions of mu ...
, the introduction is a
passage or
section
Section, Sectioning or Sectioned may refer to:
Arts, entertainment and media
* Section (music), a complete, but not independent, musical idea
* Section (typography), a subdivision, especially of a chapter, in books and documents
** Section sign ...
which opens a
movement or a separate
piece, preceding the
theme or
lyrics
Lyrics are words that make up a song, usually consisting of verses and choruses. The writer of lyrics is a lyricist. The words to an extended musical composition such as an opera are, however, usually known as a "libretto" and their writer ...
. In
popular music
Popular music is music with wide appeal that is typically distributed to large audiences through the music industry. These forms and styles can be enjoyed and performed by people with little or no musical training.Popular Music. (2015). ''Funk ...
, this is often known as the song intro or just the intro. The introduction establishes
melodic
A melody (from Greek μελῳδία, ''melōidía'', "singing, chanting"), also tune, voice or line, is a linear succession of musical tones that the listener perceives as a single entity. In its most literal sense, a melody is a combina ...
,
harmonic
A harmonic is a wave with a frequency that is a positive integer multiple of the '' fundamental frequency'', the frequency of the original periodic signal, such as a sinusoidal wave. The original signal is also called the ''1st harmonic'', ...
or
rhythm
Rhythm (from Greek
Greek may refer to:
Greece
Anything of, from, or related to Greece, a country in Southern Europe:
*Greeks, an ethnic group.
*Greek language, a branch of the Indo-European language family.
**Proto-Greek language, the assumed ...
ic material related to the main body of a piece.
[Pease, Ted (2003), p.172. ''Jazz Composition : Theory and Practice''. .]
Introductions may consist of an
ostinato
In music, an ostinato (; derived from Italian word for ''stubborn'', compare English ''obstinate'') is a motif or phrase that persistently repeats in the same musical voice, frequently in the same pitch. Well-known ostinato-based pieces include ...
that is used in the following music, an important
chord
Chord may refer to:
* Chord (music), an aggregate of musical pitches sounded simultaneously
** Guitar chord a chord played on a guitar, which has a particular tuning
* Chord (geometry), a line segment joining two points on a curve
* Chord ( ...
or
progression that establishes the
tonality
Tonality is the arrangement of pitches and/or chords of a musical work in a hierarchy of perceived relations, stabilities, attractions and directionality. In this hierarchy, the single pitch or triadic chord with the greatest stability is cal ...
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 common introduction to a rubato ballad is a
dominant seventh chord
In music theory, a dominant seventh chord, or major minor seventh chord, is a seventh chord, usually built on the fifth degree of the major scale, and composed of a root, major third, perfect fifth, and minor seventh. Thus it is a major triad ...
with
fermata
A fermata (; "from ''fermare'', to stay, or stop"; also known as a hold, pause, colloquially a birdseye or cyclops eye, or as a grand pause when placed on a note or a rest) is a symbol of musical notation indicating that the note should be ...
, an introduction that works for many songs is the last four or eight measures of the song, while a common introduction to the
twelve-bar blues
The 12-bar blues (or blues changes) is one of the most prominent chord progressions in popular music. The blues progression has a distinctive form in lyrics, phrase, chord structure, and duration. In its basic form, it is predominantly based on ...
is a single chorus.
[Weir (2005), p.55.]
If a movement in
sonata form
Sonata form (also ''sonata-allegro form'' or ''first movement 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 c ...
starts with an introductory section, this introduction is not usually analyzed as being part of the movement's
exposition
Exposition (also the French for exhibition) may refer to:
*Universal exposition or World's Fair
*Expository writing
**Exposition (narrative)
*Exposition (music)
*Trade fair
* ''Exposition'' (album), the debut album by the band Wax on Radio
*Exposi ...
.
See also
*
Anacrusis
In poetic and musical meter, and by analogy in publishing, an anacrusis (from , , literally: 'pushing up', plural ''anacruses'') is a brief introduction (distinct from a literary or musical introduction, foreword, or preface).
It is a set of s ...
*
Dominant (music)
In music, the dominant is the fifth scale degree () of the diatonic scale. It is called the ''dominant'' because it is second in importance to the first scale degree, the tonic. In the movable do solfège system, the dominant note is sung as "S ...
and
secondary dominant
A secondary chord is an music analysis, analytical label for a specific harmony, harmonic device that is prevalent in the tonality, tonal idiom of Western culture#Music, Western music beginning in the common practice period: the use of Diatonic a ...
*
Fanfare
A fanfare (or fanfarade or flourish) is a short musical flourish which is typically played by trumpets, French horns or other brass instruments, often accompanied by percussion. It is a "brief improvised introduction to an instrumental perfo ...
*
Leading tone
*
Turnaround (music)
In jazz, a turnaround is a passage at the end of a section which leads to the next section. This next section is most often the repetition of the previous section or the entire piece or song.Randel, Don Michael (2002). ''The Harvard Concise Diction ...
References
{{DEFAULTSORT:Introduction (Music)
Auxiliary members