Folks, I have a very basic understanding of theory. I've figured out how to play in key, but I have a question. Say I'm playing a rockin' I, vi, IV, V progression in the key of G. If I want to use pentatonic scales I'm switching between G, Em, C, and D pentatonic scales, correct? Same progression, say I want to use modes, I'm switching modes as I move through the chord progression, correct? If you know, let me know, thanks. It sounds obvious, but I've been working all day and I'm a little out of it.