How do you transition from the key of D to the key of G Major?

To transition from the key of D major to G major, you can use a pivot chord that is common to both keys, such as A major or B minor. For example, you could play a progression in D major, ending on A major, and then resolve to D minor before moving to G major. Alternatively, you can create a modulation by introducing a G chord as a dominant (V) of C major, leading smoothly into the new key. This approach maintains harmonic coherence while facilitating the key change.