Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:4/4
K:A
['c2 Bc eAAB c/c/B cd eAAB d2', 'fece f2 ef aefa bagf edcd e2']  
X:1
L:1/8
M:4/4
K:A
 c2 Bc eAAB | c/c/B cd eAAB | d2 cd fddc | dcde fdBA | cABc eAAB | cBcd ecBA | dcdf edcB |1 
 cA A/A/A A2 AB :|2 cAAB A2 cd |: e2 ^de fece | a/a/a ga fece | f2 ef aefa | bagf edcd | 
 e2 ^de fece | a2 ga fece | dBcd Bcde | cAAB A2 cd :|  