Not sure what you mean about chords--but yes, most of the time they will be the same. In D, use standard D progression, just like a guitar does--D, D7,D,etc. I usually try to tune to D too. Mixolydian is so high that G is almost impossible, even with Mix. gauge strings. However, even if you are tuned DAA, you don't have to stay with D prog. chords--lots of notes are on the fret board if you use the right finger chords.