Английская Википедия:Augmented seventh chord
Шаблон:Use dmy dates Шаблон:Infobox chord
The augmented seventh chord, or seventh augmented fifth chord,[1] or seventh sharp five chord is a seventh chord composed of a root, major third, augmented fifth, and minor seventh (1, 3, Шаблон:Music5, Шаблон:Music7).[2] It can be viewed as an augmented triad with a minor seventh.[3] When using popular-music symbols, it is denoted by +7, aug7,[2] or 7Шаблон:Music5. For example, the augmented seventh chord built on AШаблон:Music, written as AШаблон:Music+7, has pitches AШаблон:Music-C-E-GШаблон:Music:
- <score sound="1" lang="lilypond">
{ \override Score.TimeSignature #'stencil = ##f \relative c' {
\clef treble \time 4/4 \key c \major <as c e ges>1
} } </score>
The chord can be represented by the integer notation {0, 4, 8, 10}.
Use
The root is the only optional note in an augmented seventh chord, the fifth being required because it is raised.[4] This alteration is useful in the major mode because the raised 5th creates a leading tone to the 3rd of the tonic triad.[3] See also dominant.
In rock parlance, the term augmented seventh chord is sometimes confusingly and erroneously used to refer to the so-called "Hendrix chord", a 7Шаблон:Music9 chord which contains the interval of an augmented ninth but not an augmented fifth.[5] Шаблон:Image frameThe augmented minor seventh chord may be considered an altered dominant seventh and may use the whole tone scale, as may the dominant seventh flat five chord.[6] See chord-scale system.
The augmented seventh chord normally resolves to the chord a perfect fifth below.[7] Thus, G aug7 resolves to a C major or minor chord, for example.
- <score sound="1" lang="lilypond">
{ \override Score.TimeSignature #'stencil = ##f \relative c' {
\clef treble \time 4/4 \key c \major 1 <c e e g> \bar "||"
} } </score>
Augmented seventh chord table
Chord Root Major third Augmented fifth Minor seventh Caug7 C E GШаблон:Music BШаблон:Music CШаблон:Musicaug7 CШаблон:Music EШаблон:Music (F) GШаблон:Music (A) B DШаблон:Musicaug7 DШаблон:Music F A CШаблон:Music (B) Daug7 D FШаблон:Music AШаблон:Music C DШаблон:Musicaug7 DШаблон:Music FШаблон:Music (G) AШаблон:Music (B) CШаблон:Music EШаблон:Musicaug7 EШаблон:Music G B DШаблон:Music Eaug7 E GШаблон:Music BШаблон:Music (C) D Faug7 F A CШаблон:Music EШаблон:Music FШаблон:Musicaug7 FШаблон:Music AШаблон:Music CШаблон:Music (D) E GШаблон:Musicaug7 GШаблон:Music BШаблон:Music D FШаблон:Music (E) Gaug7 G B DШаблон:Music F GШаблон:Musicaug7 GШаблон:Music BШаблон:Music (C) DШаблон:Music (E) FШаблон:Music AШаблон:Musicaug7 AШаблон:Music C E GШаблон:Music Aaug7 A CШаблон:Music EШаблон:Music (F) G AШаблон:Musicaug7 AШаблон:Music CШаблон:Music (D) EШаблон:Music (FШаблон:Music) GШаблон:Music BШаблон:Musicaug7 BШаблон:Music D FШаблон:Music AШаблон:Music Baug7 B DШаблон:Music FШаблон:Music (G) A
See also
References
- ↑ Kroepel, Bob (1993). Mel Bay Creative Keyboard's Deluxe Encyclopedia of Piano Chords: A Complete Study of Chords and How to Use Them, p. 15. Шаблон:ISBN.
- ↑ 2,0 2,1 Garner, Robert (2007). Mel Bay Presents Essential Music Theory for Electric Bass, p. 69. Шаблон:ISBN.
- ↑ 3,0 3,1 Шаблон:Cite book
- ↑ Latarski, Don (1991). An Introduction to Chord Theory, p. 29. Шаблон:ISBN.
- ↑ Radio: "Shiver down the backbone – Jimi Hendrix comes to Radio 3", The Spectator, by Kate Chisholm, Wednesday, 21 November 2007
- ↑ Berle, Annie (1996). Contemporary Theory and Harmony, p. 100. Шаблон:ISBN.
- ↑ Bay, William (1994). Mel Bay Complete Jazz Sax Book, p. 64. Шаблон:ISBN.
