well there's still some confusion.
I just want to be sure if everybody's ok with Cmaj7 and C major 7 are the same thing with the notes C(r), E(3), G(5), B(7)
and C minor 7 = C(r), Eb(3), G(5) and Bb (7)
@dtsamples, yes I totally understood how seventh chords are built:
Major 7 =...