Develop a piece of music conforming to the stated structure and theme.
X:1
L:1/8
M:12/8
K:G
['B{d} BAG', '(3gag e (3ded B G2 B c2'  
X:1
L:1/8
M:12/8
K:G
 d2 B{d} BAG ABA ABA | GEE c2 B{d} BAG ABc | d2 B{d} BAG ABA ABA | GEE EDC D3 DFA :: 
 d2 e f2 d (3gag e (3ded B | G2 B c2 B{d} BAG ABc | d2 e fga (3gag e (3ded B | G2 B c2 E D3 D3 :|  