degenaro":50dyqjm5 said:
Are you actually playing full major triads, or are you playing A and G power chords and triads for the C and D?
Regardless...here are the options...
First off a major triad can always be followed by another major chord any distance from it (same applies to minor triads).
As for analyzing it...
The go to choice is G major with the A as a borrowed key/secondary dominant (as in the V of V). V of V means that you stick a V chord in front of the V chord.
The way I'd view the progression is as an A thing, since thanks to Blues we can superimpose C over A. And then the G is merely a bVII...like in a million Rock tunes. This way you can play A mixolydian (Dmajor) over the A and D and G, and just play A pentatonic over C.
think of it less of multiples of anything in one key but rather that I-ii-ii-IV-V, etc... all fulfill a function, and when we go outside of the key the most chords will still fulfill the same function, you just have to adjust how you play over them.
For example...say you have C7-B7-Bb7-A7...just rolling down the fret board in hald steps is gonna sound kinda lame. There is a thing that is called tritone sub, which in a nutshell says that a dom 7th chord can be substitued for another dom 7 a flat 5 away. i.e. for Bb7 you can think E7. Now look at the example I put up...sub F#7 for the C7 by ways of the tritone sub and what you will play over is F#7-B7-E7-A7
back cycling through V chords...typical type turn around. You have 4 V chords in a row...all functioning as a V chord...meaning it leads to the next chord....
Side note...when you play over a dominant 7 groove...lets say Funk jam in E7 for 10 minutes....that's a static V chord. As in, it doesn't need to go anywhere/resolve. Once it needs to resolve it becomes function...which is where throwing the hip choices comes in.
Now
I got lost. How can you "stick a V chord in front of the V chord?" It sounds like you're telling me there are two V chords in a single key.