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→Chromatic Mediants
|C||C{{s}}m||Cm||C{{s}}||F||F{{s}}m||Fm||F{{s}}
|}
You may notice that some of these chords could be considered secondary chords for other tonalities (for example VI is enharmonically equivalent to V/ii). However, they are used differently. '''Most commonly they progress to and from the tonic or as part of a modulation to another key.'''
The mediant relationship between chords is a quite harmonic one, and it's possible to use any combination of mediant chords in succession. We will lose the tonality of the original key by doing so. This prevents a complete resolution and might fail to produce closure for a progression, but makes for a very interesting journey. For example, let's move in mediants and try to return to our tonic:
I III {{b}}vi I
C E G{{s}}m - C (or B{{s}})
E is a parallel chord mediant of C. G{{s}}m is the diatonic mediant of E. B{{s}} is the parallel chord mediant of G{{s}}. B{{s}} is also enharmonically equivalent to C, so we have circled back to the original tonic.
=== Chromatic 7ths ===