Create a fitting sequence of chord changes that enhance the given musical piece.
|:{def} g2 d B2 G | def g3 | gfe dcB | Adc BAG | g2 d B2 G | 
 def g3 | gfe dcB | dcA G2 :: B2 d ded | ded B2 G | c2 e efe | 
 efg d2 c | B2 d ded | ded B2 G | gfe dcB | dcA G2 :|  
X:1
L:1/8
M:6/8
K:G
|:"G"{def} g2 d B2 G |"D7" def"G" g3 |"C" gfe"G" dcB |"D7" Adc"G" BAG |"G" g2 d B2 G | 
"D7" def"G" g3 |"C" gfe"G" dcB |"D7" dcA"G" G2 ::"G" B2 d ded | ded B2 G |"C" c2 e efe | 
 efg"D7" d2 c |"G" B2 d ded | ded B2 G |"C" gfe"G" dcB |"D7" dcA"G" G2 :|  