Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:2/4
K:Ddor
['A>B AG', 'Ad de dc']  
X:1
L:1/8
M:2/4
K:Ddor
|: A>B AG | EG CG | A>B AG | AB dc | A>B AG | EG/E/ C>D | EA GE | D2 FG :: Ad de | dc AG | Ad de | 
 dc AB | ce cA | GE C>D | EA GE | D2 FG :|  