Introduction (music)

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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 abbreviated as song intro or just intro. The introduction establishes melodic, harmonic or rhythmic material related to the main body of a piece.[1]

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.[1] 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 with fermata,[2] About this sound Play  an introduction that works for many songs is the last four or eight measures of the song,[3] About this sound Play  while a common introduction to the twelve-bar blues is a single chorus.[4] About this sound Play 

If a movement in sonata form starts with an introductory section, this introduction is not usually analyzed as being part of the movement's exposition.

See also[edit]


  1. ^ a b Pease, Ted (2003), p.172. Jazz Composition : Theory and Practice. ISBN 0-87639-001-7.
  2. ^ Weir, Michele (2005). Jazz singer's handbook: the artistry and mastery of singing jazz, p.53. Alfred Music. ISBN 9780739033876.
  3. ^ Weir (2005), p.57.
  4. ^ Weir (2005), p.55.