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A diminished seventh chord may function as a common-tone diminished seventh chord. In this role, a diminished seventh chord resolves to a major or dominant seventh chord whose root is one of the notes of the diminished seventh chord (common tone), the most common being the raised supertonic seventh, which resolves to the tonic in major keys ...
A half-diminished seventh chord is a seventh chord built from the seventh degree of a major scale. It is considered "half-diminished" because a fully diminished seventh has a double-flatted (diminished) seventh, making it enharmonically the same as a major sixth. The half-diminished seventh chord uses a minor seventh over the root of a ...
Diminished major seventh chords are very dissonant, containing the dissonant intervals of the tritone and the major seventh.They are frequently encountered, especially in jazz, as a diminished seventh chord with an appoggiatura [citation needed], especially when the melody has the leading note of the given chord: the ability to resolve this dissonance smoothly to a diatonic triad with the same ...
A seventh chord is a triad with a seventh. The seventh is either a major seventh [M7] above the root, a minor seventh [m7] above the root (flatted 7th), or a diminished seventh [d7] above the root (double flatted 7th). Note that the diminished seventh note is enharmonically equivalent to the major sixth above the root of the chord.
In dominant function, the VII half diminished chord, like its fully diminished counterpart, can take the place of the dominant V chord at a point of cadential motion. This chord, sometimes called a leading-tone diminished seventh chord, is represented by the Roman numeral notation vii ø 7, the root of which is the leading-tone to the tonic. [3]
The (fully) diminished seventh concatenates a diminished triad with a minor third, supplementing it with a diminished-seventh interval. [80] Four of these five seventh-chords—all but the diminished seventh—are constructed via the tertian harmonization of a major scale. [81] As already stated, The major-minor seventh has the dominant V 7 ...
the fifth note the V major chord (or even a dominant 7th), the sixth note the vi minor chord, the seventh note the vii diminished chord and; the octave would be a I major chord. Using the minor (aeolian mode) one would have: i minor, ii diminished, (♭)III major, iv minor, v minor, (♭)VI major, (♭)VII major and; the i minor an octave ...
A diminished seventh chord may resolve to a chord whose root is common to both chords (e.g. ♯ ii o 7 resolves to I 6). When this happens, the first chord is called a common-tone diminished seventh chord.