Develop an appropriate set of chord transitions to enhance the existing music piece.
|: D F A A | B A F2 | A G E2 | B A F2 | D F A A | B A F2 | A A G E | D2 D2 :: 
 d c B A | B A F2 | A G E2 | B A F2 | d c B A | B A F2 | A A G E | D2 D2 :|  
X:1
L:1/4
M:4/4
K:D
|:"D" D F A A | B A F2 |"A" A G E2 |"D" B A F2 |"D" D F A A | B A F2 |"A" A A G E |"D" D2 D2 :: 
"G" d c B A |"D" B A F2 |"A" A G E2 |"D" B A F2 |"G" d c B A |"D" B A F2 |"A" A A G E |"D" D2 D2 :|  