Am ➔ G major / E minor
B ➔ E harmonic minor
Em ➔ G major / E minor
Dm ➔ C major / A minor
Fm ➔ C harmonic minor
G7 ➔ C harmonic minor
C ➔ C major / A minor
E7 ➔ A harmonic minor
Conceived by the theory of tonal gravitation (E. Di Mauro).
Scientific references (in French):
Books (in Italian) :