Secondary supertonic chord

In music theory, the secondary supertonic chord or secondary second, is a secondary chord, but rather than being on the dominant it is on the supertonic scale degree and rather than tonicizing a degree other than the tonic, as does a secondary dominant, it creates a temporary dominant. Thus the progression i i V - V V - V ( I ) .

Examples include ii7/III (F♯min.7, in C major).