Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/8
Q:1/4=120
M:4/4
K:A
['B2 d>d', 'B>Bc>c d>dB>B'  
X:1
L:1/8
Q:1/4=120
M:4/4
K:A
"^In the style of a March."!p! e>e | c2 e>e c2 e>e | e/d/c/d/ B2 B2 d>d | B2 d>d B2 d>d | 
 d/c/B/c/ A2!f! A2 (A>c | e2) (c>e a2) (e>a | c'2) a>a a2 e>a |!p! e2 c>e d2 B>d | 
 c2 A>A!f! A2 (A>c | e2) (c>e a2) (e>a | c'2) a>a a2 e/f/g/a/ | e2 c>e{e} d2 B>G | A2 A>A A2 :: 
!p! A>B | c2 c>c c2 d2 | e2 z c/d/ ee f/e/d/c/ | B2 B>B B2 c2 | d2 z B/c/ dd e/d/c/B/ | 
 c2 e>e e2 f/e/d/c/ | f2 a>a a2 b/a/g/f/ | e2 e>e e2 f/e/d/c/ | B>Bc>c d>dB>B | 
 (3(cAc) (3(ece) (3(aec) (3(ecA) | B>Bc>c d>dB>B | (3(cAc) (3(ece) (3(aec) (3(ecA) | 
 B>Bc>c d>dB>B | A2 z3/2 (E/4F/4G/4 A2) z3/2 (E/4F/4G/4 | A2) A>A A2 :|  