Compose a piece adhering to the given musical structure and theme.
X:1
L:1/8
Q:1/8=3
M:6/8
K:G
['D G2 G GBd e2 e dBG', 'd e2 d B2 d gfe d2', 'e3 d3'  
X:1
L:1/8
Q:1/8=3
M:6/8
K:G
|:"^A" D | G2 G GBd | e2 e dBG | A2 d BAG | E2 F G2 ::"^B" d | e2 d B2 d | gfe d2 d | e2 d B2 d | 
 gfe d2 c | B2 B Bcd | e2 e dBG | A2 A BAG | E2 F G2 ::[Q:1/8=3]"^C" z |[M:3/8] d3 |[M:6/8] e3 d3 | 
 B3 d3 | (2:3:2gf e3 | d3 d3 | e3 d3 |[M:3/8] B2 d |[M:6/8][Q:1/8=3] gfe d2 c | B2 B Bcd | 
 e2 e dBG | A2 A BAG | E2 F G2 :|  