Royal road progression
The royal road progression (王道進行, ōdō shinkō), also known as the IVM7–V7–iii7–vi progression or koakuma chord progression (小悪魔コード進行, koakuma kōdo shinkō), is a common chord progression within contemporary Japanese pop music. == The chord progression == It involves the seventh chords of IV, V, and iii, along with a vi chord; for example, in the key of C major, this would be: FM7–G7–Em7–Am.