Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:4/4
K:C
['f2 f>f', 'F2 Ac df Ac (d/c/B/A/) B2', 'f2 [FAf]>f']  
X:1
L:1/8
M:4/4
K:C
[M:4/4][K:F]!p! ee ed dea ac (.F/G/A/B/) | A>c cc c2 de | f2 ga f2 cd | B2 df Ac (d/c/B/A/) | 
 B2 GG F2 Ac | B2 df Ac (d/c/B/A/) | B2 G>A F2 (A/c/d/e/) | f2 f>f g2 ga | b2 b>b ag ag | 
 fefa c2 (3cde |1 f2 f>f f2 :|2 f2 f>f f2 fg |: f>a aa bagf | e>f ga g2 (g/f/e/f/) | 
 d2 dd de/f/ (g/f/e/d/) | cB AG F2 Ac | !>!B2 df Ac (d/c/B/A/) | B2 GG F2 Ac | 
 !>!B2 df Ac (d/c/B/A/) | B2 G>G F2 z2 :: !>![df]2 [df]>[df] [df]2 (e/f/g/e/) | 
 !>![ce]2 [ce][ce] [ce]2 (e/f/g/e/) | !>!B2 B>B Bd cB | AG FE F2 Ac | !>!B2 df Ac (d/c/B/A/) | 
 B2 G>G F2 A/c/d/e/ | !>!f2 f>f !>!g2 ga | !>!b2 b>b agag | fe fa c2 (3cde |1 
 f2 [FAf]>f [FAf]2 z2 :|2 f2 [FAf]>f [FAf]2 |]  