Minor V before I · Rules
In minor, the V that goes to I is always major, with the leading tone (G♯ in A minor). The minor V, with the natural seventh degree, is used in a line descending toward IV or VI, never before I.
- Minor V before I: In minor, the V that goes to I is always major, with the leading tone (G♯ in A minor). The minor V, with the natural seventh degree, is used in a line descending toward IV or VI, never before I. (Piston, ch. 4, pp. 40 and 45)