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Dominant seventh chords are often built on the fifth scale degree (or dominant) of a key. For instance, in the C major scale, G is the fifth note of the scale, and the seventh chord built on G is the dominant seventh chord, G 7 (shown above). In this chord, F is a minor seventh above G.
The triad built on the dominant note is called the dominant chord. This chord is said to have dominant function, which means that it creates an instability that requires the tonic for resolution. Dominant triads, seventh chords, and ninth chords typically have dominant function. Leading-tone triads and leading-tone seventh chords may also have ...
The harmonic seventh chord is a dominant seventh chord formed by a major triad plus a harmonic seventh interval. The harmonic seventh interval is a minor seventh tuned in the 7:4 pitch ratio, one of the possible "just ratios" defined for this interval in just intonation (slightly below the width of a minor seventh as tuned in equal temperament ...
In music, the dominant 7 ♯ 9 chord [1] ("dominant seven sharp nine" or "dominant seven sharp ninth") is a chord built by combining a dominant seventh, which includes a major third above the root, with an augmented second, which is the same pitch, albeit given a different note name, as the minor third degree above the root.
An altered seventh chord is a seventh chord with one, or all, [15] of its factors raised or lowered by a semitone (altered), for example, the augmented seventh chord (7+ or 7+5) featuring a raised fifth (C E G ♯ B ♭ [16] (C 7+5: C–E–G ♯ –B ♭). The factors most likely to be altered are the fifth, then the ninth, then the thirteenth ...
In music theory, the dominant seventh flat five chord is a seventh chord composed of a root note, together with a major third, a diminished fifth, and a minor seventh above the root (1, ♮ 3, ♭ 5 and ♭ 7). For example, the dominant seventh flat five chord built on G, commonly written as G 7 ♭ 5, is composed of the pitches G–B–D ♭ –F:
Seventh (F), in red, of a G7 dominant seventh chord in C Third inversion G7 chord; the seventh is the bass. In music, the seventh factor of a chord is the note or pitch seven scale degrees above the root or tonal center. [1] When the seventh is the bass note, or lowest note, of the expressed chord, the chord is in third inversion Play ⓘ.
A leading-tone triad is a triad built on the seventh scale degree in a major key (vii o in Roman numeral analysis), while a leading-tone seventh chord is a seventh chord built on the seventh scale degree (vii ø 7). Walter Piston considers and notates vii o as V 0 7, an incomplete dominant seventh chord. [1]
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