I've never understood how modes fit in with chord progressions. Am I right that short melodies usually stick within an octave and the lowest note and highest notes are octaves, define the root of the melody and set the mode? To play a chord progression in a particular mode do you have to invert some of the chords to keep the notes within the same octave? Just to clarify here's an example ,
not CEG, FAC, GBD (where the D from the G major is 1 tone too high to stay within the mode)
but CEG,FAC, DGB?
Please someone put me out of your misery!