Major 7
Lydian(more recc. because of #4) or Major
Minor 7
Dorian(because of b3 b6 and b7)
Dominant 7
Mixolydian(because of b7)
When building 1/2dim
flat all but root
ii V I – Major
minor – dom7 – maj7 (Use Major scale over all)
ii V I – Minor
1/2dim – 7b9 – min7 (Use harmonic minor over ii & V and natural min or Dorian over I)