Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/8
Q:1/8=180
M:6/8
K:G
['GBd gdB', 'gfg edB'  
X:1
L:1/8
Q:1/8=180
M:6/8
K:G
|: D | GBd gdB | ded d2 B | GBd gdB | ABA A2 B | GBd gdB | def gfe | ded BcA | BGG G2 :: B/d/ | 
 gfg edB | ded def | gfg edB | ABA A2 d | gfg edB | def gfe | ded BcA | BGG G2 :|  