You may notice that alternating between a C minor and C diminished triad, has a familiar ring to it too. It’s been a common device ... and want a shock chord, a diminished 7th is great place ...

All the chords built on other notes in the scale of C are minor, except chord VII - the notes B – D – F, which is diminished. When a seventh is ... of cadence. Two common modes are the Dorian ...