Compose a piece of music that follows both the given musical theme and the letter-based structure provided.
X:1
L:1/8
Q:1/8=128
M:4/4
K:A
['E2 E>F Ad/c/']  
X:1
L:1/8
Q:1/8=128
M:4/4
K:A
|: c>B AF E<C E2 | E>F Ad/c/ B>A B2 | c>B AF E<C E2 | E>F Ad/c/ cB A2 | c>B AF E<C E2 | 
 E>F Ad/c/ B>A B2 | c>B AF E<C E2 | E>F Ad/c/ cB A2 | c<e e>f ec e2 | c<e e>f f/e/c/A/ B2 | 
 c<e e>f ec e2 | E2 d/c/B/A/ cB A2 | c<e e>f ec e2 | c<e a>f f/e/c/A/ B2 | c>B AF EC E2 | 
 E>F Ad/c/ cB A2 :|  