Chord Family
The Question to Ask
Major 7th
Natural 4 or Sharp 4?
(Major or Lydian)Dominant 7th
Natural 4 or Sharp 4?
(Mixolydian or Lydian, b7)Minor 7th
Natural 6 or Sharp 6?
(Aeolian or Dorian)Half-Diminished
Natural 2 or Sharp 2?
(Locrian or Locrian, #2)Diminished 7th
W Step, 1/2 Step Diminished
Dom. 7th, alt. 5th
Whole Tone
Dom. 7th, alt. 9Th
1/2 Step, W Step Diminished
Dom. 7th, alt. 5 & 9
Super Locrian
II-V-I in Major
Major scale of the key
II-V-I in Minor
Harmonic Minor of the key
Dominant 7th Blues
Minor Blues scale of the key(1 b3 4 #4 5 b7)