Nikolai Rimsky-Korsakov · section 82 of 96
The Artificial Dominant Seventh Chord and the Artificial Diminished Seventh Chord
Read and hear this section in the playable edition →§ 78. — 1) The artificial dominant seventh chord is formed by raising the third (as a chromatic passing note) in the seventh chord of the 2nd degree of the major key; it resolves to the chord of the 1st or of the 5th degree.
2) The artificial diminished seventh chord arises from combining the preceding alteration with an alteration of the root of the same chord; it resolves to the 1st degree only.
3) Both are used preferably as chords of the fifth-and-sixth and of the third-and-fourth in cadences:


4) Both of them, prepared by the triads of the Ist or VIth degree as well as by that of the IVth, can be used as independent chords.

REMARK.— When the artificial diminished seventh chord is prepared by the triad of the IVth degree, one of the parts moves down by a diminished third:

5) In minor, the artificial dominant seventh chord requires, in addition to the raising of the third, the raising of the fifth as well:

the use of the second inversion of this chord is rare.
6) The artificial diminished seventh chord cannot be formed on the IInd degree of the minor mode.