Hi
Droops , your musical terms are very fine
just seems you have been speaking english all your life long
well when i say II V I progression, you should think of full scales and not only of single notes
So for example, in the key of C, the II chord starts an the D note and has a minor third (regular F in the key of C) a perfect fifth, a minor 7th and so on...(9th, 11th, 13th)
So actually you could think the scale running from D to D but using every white note on the piano keyboard. It will sound different from the scale that starts from the C root note despite it uses the same notes.
Think exactly the same way concerning the V chord and then the I chord.
So concerning my previous explanation: on a II V I progression,in the key of C (for exemple), the 7th of the II chord (D-7) goes down a half step into the third of the V chord (G7). And then the 7th of the V chord goes down a half step into the third of the I chord (C maj 7).
So playing notes it goes like this: do si fa mi do
which give quite a nice backround
But remember that is only a solution among zilions!!
And remember : on a chord symbol think of scales as a pool of available notes more than only root or basic chords
Hope you see what i mean
