Nikolai Rimsky-Korsakov · section 55 of 96
False relations
Read and hear this section in the playable edition →§ 53. — 1) The immediate connection of chords belonging to the different modes — natural and harmonic — results in chromatic motion in one of the parts.
The connection of chords of the natural minor mode with chords of the harmonic minor mode produces ascending chromatic motion:

The connection of chords of the natural major mode with chords of the harmonic major mode produces descending chromatic motion:

2) The chromatic motion must absolutely lie in one and the same part, to avoid what is called a false relation, which is strictly forbidden to the student:

3) Connections of chords belonging to different modes are called polytonic successions. (*)