Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:3/4
K:F
['BA GF']  
X:1
L:1/8
M:3/4
K:F
|:"F" fe fg f2 |"C7" e2 cd ec |"F" f2 F2 F2 | F4 c2 |"Bb" d2 d2"^(C)" e2 |"F" f2 c2 A2 | 
"Gm" B2 B2 A2 |"C7" A2 G4 :|"C" C2 BA B2 |"F" Ac BA GF |"C" C2 BA B2 |"F" Ac BA GF |"Bb" dc Bc de | 
"F" fe dc BA |"Gm" dc BA GF |"C7" EG FE DC |"F" FE FG AB |"C" c=B cd ec |"Dm" f2 F2 F2 | F4"^I" | 
 d2 |"Bb" ^c2 d2 d2 |"F" =B2 c2 c2 |"C7" B2 G2 E2 |"F" F6 |]  