what is the 145 progression? is it the first , fourth, and fifth notes in the scale? and which mode are you talking about. also i think my original question was phrased wrong. i just noticed that if you play the minor pentatonic scale with the tonic being "G" in the key of "G"., it is the same position as if you were to play the major pentatonic scale in g except you start at "E" instead(not to say that e is the tonic