Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:2/2
K:A
['eaga bagf eagf fedc', 'cAEC A,CEA ceag fedc']  
X:1
L:1/8
M:2/2
K:A
 c | eaga bagf | eagf fedc | B2 Bc dBBc | dBfB bBfB | eaga bagf | eagf fedc | ABcd efed | 
 cAAB cAA || e | cAEC A,CEA | ceag fedc | B2 Bc dBBc | dBfB bBfB | cAEC A,CEA | ceag fedc | 
 ABcd efed | cAAB cAA ||  