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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:
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 ...
Drop D 7-string tuning – D-D-A-d-g-b-e' This is the standard seven-string tuning with the low B string raised to D and lower E string dropped to D. The Drop C variation of this tuning (C-C-G-C-F-A-D) was used by James Hetfield on an ESP 7-String Guitar when Metallica were recording the song "Some Kind Of Monster" from the album St. Anger.
In this case, the chord is viewed as a C major seventh chord (CM 7) in which the third note is an augmented fifth from root (G ♯), rather than a perfect fifth from root (G). All chord names and symbols including altered fifths, i.e., augmented (♯ 5, +5, aug5) or diminished (♭ 5, o 5, dim5) fifths can be interpreted in a similar way.
In music, an augmented major seventh chord or major seventh sharp five chord is a seventh chord composed of a root, major third, augmented fifth, and major seventh (1, 3, ♯ 5, 7). It can be viewed as an augmented triad with an additional major seventh. When using popular-music symbols, it is denoted by e.g. + Δ 7.
[50] [h] The standard-tuning implementation of a C7 chord is a second-inversion C7 drop 2 chord, in which the second highest note in a second inversion of the C7 chord is lowered by an octave. [ 50 ] [ 52 ] [ 53 ] Drop-two chords are used for sevenths chords besides the major–minor seventh with dominant function, [ 54 ] which are discussed in ...
Diminished chord function is rarer but still exists. Half-diminished chords can function in the same way as fully diminished chords, such as in the chord progression CM 7 – C ♯ dim 7 – Dm 7, or Em 7 – E ♭ dim 7 – Dm 7, where the diminished chord serves as a chromatic passing chord preceding a chord with a diatonic
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 ⓘ.