subtonic
101Chromatic mediant — Chromatic mediants in C major and a minor. In music, chromatic mediants, or a chromatic mediant relationship is a relationship between two sections and/or chords whose roots are related by a major third or minor third, contain one common tone …
102Diminished seventh chord — on C  Play ( …
103Contrast chord — example  Play (help …
104Passing chord — in B♭ from across the circle of fifths (tritone, see also tritone substitution): B♮7 …
105Diminished major seventh chord — Diminished major seventh chord.  Play …
106Eleventh chord — on C[1], CMA11.  Play ( …
107Ninth chord — Ninth (C9) vs added ninth chord (C(add9)), distinguished, in academic textbooks and jazz rock sheet music, by the presence or absence of a seventh.[1] …
108Predominant chord — The French sixth chord; distinguishing tone highlighted in blue.  Play (help· …
109Dominant seventh flat five chord — See also: Half diminished seventh chord dominant seventh flat five chord Component intervals from root minor seventh diminished fifth (tritone) …
110Dream chord — Component intervals from root fifth augmented fourth fourth root …