Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/4
M:3/4
K:A
['A A a e2 c/e/', 'd/B/G/E/G/B/ A c e']  
X:1
L:1/4
M:3/4
K:A
 A A a | e2 c/e/ | d/c/d/B/A/G/ | A c e | A A a | e2 c/e/ | d B G | A3 :: d/B/G/E/G/B/ | A c e | 
 d/B/G/E/G/B/ | A c e | A A a | e2 c/e/ | d B G | A3 :|  