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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 tones, or omissions are usually also superscripted. For example, the major seventh chord built on C, commonly written as Cmaj 7, has pitches C–E–G–B:
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 chord quality (e.g. minor or lowercase m, or the symbols o or + for diminished and augmented chords, respectively; chord quality is usually omitted for major chords) whether the chord is a triad, seventh chord, or an extended chord (e.g. Δ 7) any altered notes (e.g. sharp five, or ♯ 5) any added tones (e.g. add2)
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 ...
Chord quality alteration is when the quality of a chord is changed, and the new chord of similar root and construction, but with one pitch different, is substituted for the original chord, for example the minor sixth for the major seventh, or the major seventh for the minor. [10] vii o 7 as dominant substitute ♯ II o 7 as dominant substitute
The scheme I-x-V-I symbolizes, though naturally in a very summarizing way, the harmonic course of any composition of the Classical period.This x, usually appearing as a progression of chords, as a whole series, constitutes, as it were, the actual "music" within the scheme, which through the annexed formula V-I, is made into a unit, a group, or even a whole piece.
Harmonic minor contains seven types of seventh chords: a minor major seventh chord (i m(maj7)), a half-diminished seventh chord (ii m7(−5)), an augmented major seventh chord (III aug(maj7)), a minor seventh chord (iv m7), a dominant seventh chord (V 7), a major seventh chord (VI maj7), and a diminished seventh chord (vii dim7).
12-course, 23-string archlute: Armonico: 7 strings 6 courses. E 3 •A 3 •D 4 •G 4 G 4 •B 3 •E 4: Cuba Arpeggione: 6 strings 6 courses. E 2 A 2 D 3 G 3 B 3 E 4: Vienna, Austria Rare. Tuning is same as guitar. Autoharp: 36 strings 36 courses. F 2 G 2 C 3 D 3 E 3 F 3 F ♯ 3 G 3 A 3 A ♯ 3 B 3 C 4 C ♯ 4 D 4 D ♯ 4 E 4 F 4 F ♯ 4 G 4 ...