Seventh Chord

A seventh chord is a chord consisting of a triad plus a note forming an interval of a seventh above the chord's root. When not otherwise specified, a "seventh chord" usually means a dominant seventh chord: a major triad together with a minor seventh. However, a variety of sevenths may be added to a variety of triads, resulting in many different types of seventh chords, as described below.

In its earliest usage, the seventh was introduced solely as an embellishing or nonchord tone. The seventh destabilized the triad, and allowed the composer to emphasize movement in a given direction. As time passed and the collective ears of the western world became more accustomed to dissonance, the seventh was allowed to become a part of the chord itself, and in some modern music, and jazz in particular, nearly every chord is a seventh chord. Additionally, the general acceptance of equal temperament during the 19th century reduced the dissonance of some earlier forms of sevenths.

Read more about Seventh Chord:  Types of Seventh Chords, Inversions

Other articles related to "seventh chord, chord, seventh, chords":

Seventh Chord - Inversions
... There are four different inversions ... Seventh chord inversions are as follows — GBDF — BDFG — DFGB — FGBD ...
Half-diminished Seventh Chord
... In music theory, the half-diminished seventh chord, also known as a half-diminished chord or a minor seventh flat five (m7♭5), is created by taking the root, minor third, diminished fifth and ... In diatonic harmony, the half-diminished chord naturally occurs on the 7th scale degree (for example, Bø7) in C major) ... It occurs as a leading-tone seventh chord in major and can be represented by the integer notation {0, 3, 6, 10} ...
Chord Names And Symbols (popular Music) - Rules To Decode Chord Names and Symbols - Examples
... the application of these generic and specific rules to interpret some of the main chord symbols ... The same rules apply for the analysis of chord names ... information is explicitly provided in the chord symbol (boldface font in the column labeled "Component intervals"), and can be interpreted with rule 1 ...
Harmonic Seventh Chord - Barbershop Seventh
... barbershop seventh chord ... A chord consisting of the root, third, fifth, and flatted seventh degrees of the scale ... When used to lead to a chord whose root is a fifth below the root of the barbershop seventh chord, it is called a dominant seventh chord ...
Harmonization - Reharmonization - Jazz Reharmonization - Chord Substitution
... reharmonization is the use of substitute chords, through a technique known as tritone substitution ... In tritone substitution, a dominant chord is replaced by another dominant chord a tritone above its tonic ... This technique is based on the fact that the third and seventh degrees of a dominant chord are enharmonically the same as the seventh and third degrees of the dominant ...

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