405. THE BIG DIFFERENCE BETWEEN TRANSPOSITIONS AND MODULATIONS. ADOPTIONS AND RE-HARMONIZATION OF BLUES AND OTHER SONGS BY MODULATIONS

 See also post  222 where the 7 modes are identified as 7 harmonic triads of chords    and post   356, 402  and     205 , 215, 216     for compositions and improvisations based on harmonic triads of chords