Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/8
Q:1/8=128
M:4/4
K:D
['d<B B>A']  
X:1
L:1/8
Q:1/8=128
M:4/4
K:D
|: A | d>c d>B A<F A>B | D<D F>E D<B, B,>D | A,>B, D>E F>E F<A | B<d A>F E2 EA | d>c d>B A<F A>B | 
 D<D F>E D<B, B,>D | A,>F D>B, A,>B, D>B | A<F d>F E2 DA | f2 e>f d<B B>A | d<b a>d c<A A>d | 
 f2 f>e d<B B>A | d/f/b a>f e2 a>g | f2 e>f d<B B>A | d<b a>d c<A A>F | 
 (3(DFA) (3(AFA) (3(BAB) d>A | (3(dfb) a>f d2 :|  