Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
M:4/4
K:F
['c<A{A} G>F', 'f>a (3gfe']  
X:1
L:1/8
M:4/4
K:F
 C | F>EF>G (A<c)c>d |{d} c<A{A} G>F D<GG>A | FE<FG/ (A<c)c>f | c<A{A} G>F [A,F]2- [A,F] :| c | 
 f>a (3gfe (d<f)(c<f) | B<fA<f g<GG>e | f>a (3gfe d<f c<f | (3eba (3gfe [Af]2- [Af]>c | 
 f>a (3gfe d<[fb]c<[fa] | B<[fg]A<f g<GG>B | A>c (3dcB A<cd<f | c<A{A} G>F [A,F]2 [A,F] ||  