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),[1] is a common chord progression within contemporary Japanese pop music.[2]
コード進行としてJ-POP で頻繁に使用される「王道 進行」ないし「小悪魔コード進行」と呼ばれる F → G → E m → Am のコード進行…[The chord progression of F → G → E m → Am, a progression often used in J-pop, is called "ōdō shinkō" or "koakuma kōdo shinkō"...]