minor-minor 7th
.
–  minor-minor 7th in  several positions
____ II7   in major
_______ after the same triad
_______ after another triad
_______ with other 7th chords
____ VI7   in major
_______ after the same triad
_______ after another triad
_______ with other 7th chords
____ III7   in major
_______ after the same triad
_______ after another triad
_______ with other 7th chords
____ IV7   in minor
_______ after the same triad
_______ after another triad
_______ with V7
____ I7a   in minor
_______ after the same triad
_______ after another triad
_______ with IV7
____ Va 7 in minor
_______ with other triads
_______ with other 7th chords