Create musical pieces following the given structure and incorporating the suggested musical theme.
X:1
L:1/8
Q:1/8=128
M:4/4
K:D
['A>B A>F']  
X:1
L:1/8
Q:1/8=128
M:4/4
K:D
|: D | A>B A>F D>F A>d | D/E/F/G/ A>F B>E G>B | A>B A<F B>d c>e | f>d e/f/g/e/ f<d d>B | 
 A>B A>F D/E/F/G/ A/B/c/d/ | D>F A>F B/A/G/F/ E>B | A>B A>F G>B A<d | B>d c<e f<d df | 
 a>f d>f d/e/f/g/ a>f | g>e f<d e>d B>g | a>f d>f d>e f<d | B>d c>e d<D D>f | a>f d>f d>e f<d | 
 B>d A<F B>E G<B | F>D F<A B>G B<d | d/c/B/A/ B/d/c/e/ f<d d :|  