Hello all. I have been trying to understand chord progression and i feel like I have one piece of the puzzle missing! I understand the whole roman numeral system ( e.g. I - major, i - minor) in relation to intervals and the upper/lower case of the letter dicatates whether they are major or minor, and that the flattended 3rd makes a major a minor but have a few questions to clear things up. If I am playing a minor chord progression, say i -vi - VII, is this 'pattern' based on a major scale or a minor scale? Also, do I use a minor scale to produce the desired appegios ONLY on the minor chord (in this case i & vi) to add flavour to the guitar and conversely do I ONLY use major scales on the major chords in a minor chord progression? Also, same question for major chords, e.g. in the cord progression I-vi-IV-V, Do i use the minor scale on the vi? I hope this question makes sense? I feel I've nearly grasped it but just want to be sure before I start really applying myself. Cheers!