Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/8
M:4/4
K:G
['C2 GC', 'Ad d2', 'AD D2'  
X:1
L:1/8
M:4/4
K:G
|: Adde fded | cAGE CAGE | C2 GC ACGC | C2 GC cAGE | D2 AD dDAD | ABcA d2 (3efg | afge =f3 e | 
 dcAF G2 FG :: Ad d2 adfd | AddB cBAG | Ad d2 fded | cAGC EGAc | Ad d2 fded | dcAB cABG | 
 A3 B ADFA | BccB c2 dc :: AD D2 ADBD | ADFA c2 bc | AD D2 ADFD | GC C2 E=FGc | AD D2 ADBD | 
 ADFA c2 Bc | A3 B ADFA | BccB cedc :|  