Compose a piece of music that follows both the given musical theme and the letter-based structure provided.
X:1
L:1/8
Q:1/4=120
M:4/4
K:A
['C (A,>C)(B,>D) (C>E)(D>F) (E>=G)(F>A) (3^GAB (3ABc (A,>C)(B,>D)', '(3DCB, (A,>C)(B,>D) (C>E)(D>F) (E>=G)(F>A) (3^GAB (3ABc (d>f)(B>d)', '(a>A)(c>e) a/g/f/e/ f/e/d/c/']  
X:1
L:1/8
Q:1/4=120
M:4/4
K:A
"^Slowly" C | (A,>C)(B,>D) (C>E)(D>F) | (E>=G)(F>A) (3^GAB (3ABc | (A,>C)(B,>D) (C>E)(D>g) | 
 (3fed (3cBA (3GFE (3DCB, || (A,>C)(B,>D) (C>E)(D>F) | (E>=G)(F>A) (3^GAB (3ABc | 
 (d>f)(B>d) (c>e)(A>c) | (B>d) (E>G) (A2 A) || e | (a>A)(c>e) a/g/f/e/ f/e/d/c/ | 
 (d>f)(c>e) f<BB>g | a>Ac>e a/g/f/e/ d/c/B/A/ | (d>f)(e>g) a<AA>e | (a>A)(c>e) a/g/f/e/ f/e/d/c/ | 
 (d>f)(e>c) f<BB>e | (3cAc (3BGB (3AFA (3ECE | (D>F) (E>G) (3AEC A, ||  