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In music, a major seventh chord is a seventh chord in which the third is a major third above the root and the seventh is a major seventh above the root. The major seventh chord, sometimes also called a Delta chord, can be written as maj 7, M 7, Δ, ⑦, etc. The "7" does not have to be superscripted, but if it is, then any alterations, added ...
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. In Roman numeral analysis, G 7 would be represented as V 7 in the key of C major.
The most common chords are tertian, constructed using a sequence of major thirds (spanning 4 semitones) and/or minor thirds (3 semitones). Since there are 3 third intervals in a seventh chord (4 notes) and each can be major or minor, there are 7 possible permutations (the 8th one, consisted of four major thirds, results in a non-seventh augmented chord, since a major third equally divides the ...
Added tone chord; Altered chord; Approach chord; Chord names and symbols (popular music) Chromatic mediant; Common chord (music) Diatonic function; Eleventh chord
The major-minor seventh has the dominant V 7 function. The major seventh plays the tonic (I7) and subdominant (IV 7) roles; The minor seventh plays the ii 7, iii 7, and vi 7 roles. The half-diminished seventh plays the vii ø 7 role. While absent from the tertian harmonization of the major scale,
List of musical scales and modes Name Image Sound Degrees Intervals Integer notation # of pitch classes Lower tetrachord Upper tetrachord Use of key signature usual or unusual ; 15 equal temperament
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[citation needed] From that, we can list the scales and the triad qualities and the seventh chord qualities in each scale as degrees of Dorian mode and Aeolian dominant scale (Dorian ♯3 ♭6 scale) and Neapolitan major scale (Dorian ♭2 ♯7 scale) and double harmonic scale (Dorian ♭2 ♯3 ♭6 ♯7 scale) and the two types of Dorian ...