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Because of this construction, the 7th degree of the harmonic minor scale functions as a leading tone to the tonic because it is a semitone lower than the tonic, rather than a whole tone lower than the tonic as it is in natural minor scales. The intervals between the notes of a harmonic minor scale follow the sequence below:
The diminished seventh chord occurs as a leading-tone seventh chord in the harmonic minor scale. It typically has dominant function and contains two diminished fifths, which often resolve inwards. [2] The chord notation for the diminished seventh chord (assuming root C) is Cdim 7 or C o 7 (or Cm 6 ♭ 5 for the enharmonic variant).
The scales commonly used today consist of the seven modes of the diatonic scale, the seven modes of the melodic minor scale, the diminished scales, the whole-tone scale, and pentatonic and bebop scales. [7] In the example below featuring C 7 ♯ 11 and C lydian dominant every note of the scale may be considered a chord tone [7] while in the ...
The diminished seventh is used quite readily in the minor key, where it is present in the harmonic minor scale between the seventh scale step and the sixth scale step in the octave above. In 12-tone equal temperament , a diminished seventh is equal to nine semitones, a ratio of 2 9/12 :1 (approximately 1.6818), or 900 cents, and is ...
the diatonic scale; including the major scale and its modes (notably the natural minor scale, or Aeolian mode) the melodic minor scale, like the Aeolian mode but with raised 6th and 7th ascending; the harmonic minor scale, like the Aeolian mode but with raised 7th; the harmonic major scale, like the major scale but with lowered 6th
In a major key, it is a lowered, or flattened, seventh scale degree (♭). It appears as the seventh scale degree in the natural minor and descending melodic minor scales but not in the major scale. In major keys, the subtonic sometimes appears in borrowed chords. In the movable do solfège system, the subtonic note is sung as te (or ta).
For example, the interval from A 3 to G 4 is a minor seventh, as the note G 4 lies ten semitones above A 3, and there are seven staff positions from A 3 to G 4. Diminished and augmented sevenths span the same number of staff positions, but consist of a different number of semitones (nine and twelve, respectively).
USi – e.g. C minor over C 7, resulting in C 7 ♯ 9; US ♭ ii – e.g. D ♭ minor over C 7, resulting in C 7 ♭ 9 ♭ 13; US ♭ iii – e.g. E ♭ minor over C 7, resulting in C 7 ♯ 9 ♯ 11; The second item in the list above (C 7 ♭ 9 ♯ 11) has a related version called upper structure sharp four minor--with the written shorthand US ...