Key Of F natural minor...
 
Key of:    F natural minor
 
        7 Tones in key:              F, G, Ab, Bb, C, Db, Eb        (i, iidim, IIII, iv, iv, VI, VII)
        3 Primary Chords:         Fm, Bbm, Cm                         (i, iv, v)
        3 Secondary Chords:     Ab, Db, Eb                             (III, VI, VII)
        Dominant 7th chord:      C7                                          (V7)
  Danman says..."Check out the chart"...F natural minor
 
  Scale Step      Root     3rd    5th   Chord Type
         I         F      Ab     C   Minor
        II        G      Bb     Db   Diminished
        III        Ab      C     Eb   Major
        IV        Bb      Db     F   Minor
        V        C      Eb     G   Minor
       VI        Db      F     Ab   Major
       VII        Eb      G     Bb   Major