Develop a musical piece using the given motif and adhere to the outlined musical structure.
X:1
L:1/8
Q:1/8=128
M:4/4
K:Amin
['a>e e>d c>A']  
X:1
L:1/8
Q:1/8=128
M:4/4
K:Amin
|: B | c<A A>B c<A A>c | B<d d>c BG GB | c>A d>B e>c d>B | e/d/c/B/ e>B cA AB | c<A A>B c<A A>c | 
 B<d d>c BG GB | c>A d>B e>c d>B | e/d/c/B/ e>B cA A^g | a>e e>d c>A A>c | B>g dg BG G^g | 
 a>e e>d c>A a>g | f/e/d/c/ B/c/d/B/ cA A^g | a>e e>d c>A A>c | B>g dg BG GB | 
 (3(ABc) (3(Bcd) (3(cde) (3(def) | e>a ^g>b aA A :|  