I'm trying to get into theory for writing and soloing. My understanding is there's a rule for a scale that the 1,4, and 5 chords are in the same major/minor (is that what mode means?) and the 2,3, and 6 are the opposite. I found a really good chord progression that I'm liking, but I'm using 5 different chords, and they're all major.
For the main verse of the song, I'm using D->C->G, which fits into G Major that I'm trying to work with. Then for the chorus, I have one phrase that repeats F->D a few times, and ends with G->A. Basically, I'm using everything except B and E, and everything's major.
So, how would I translate this to a scale that I would use to play lead and solos. I know it's not unheard of to change key in a song, but I'm trying to keep it basic. Also, I don't know of any major/minor scale that allows the F and D to be the same. How have more experienced musicians handled this?
Thanks for your help.
