Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/8
Q:1/8=128
M:4/4
K:Bmin
['F<B B>F B/B/B d2']  
X:1
L:1/8
Q:1/8=128
M:4/4
K:Bmin
|: B | F<B B>F B/B/B d2 | c>B A>c e/d/c/B/ A<c | F<B B>F B/B/B d2 | d>B c>^A B2 B,B | 
 F<B B>F B/B/B d2 | c>B A>c e/d/c/B/ A<c | F<B B>F B/B/B d2 | d>B c>^A B2 B,c | d2 df d/d/d f>d | 
 c>B A>c e/d/c/B/ Ac | d2 df d/d/d d2 | d>B c>^A B2 B,c | d2 df d/d/d f>d | c>B A>c e/d/c/B/ Ac | 
 d<f d<f c<A e<c | d>B c>^A B2 B, :|  