Create a composition based on the provided motif, following the specified musical structure.
X:1
L:1/8
M:4/4
K:Amin
['A2 e2 e2 e>e e2 d>c B4', 'A4 e4 B4 c2 e4 dc B6'  
X:1
L:1/8
M:4/4
K:Amin
 A2 e2 e2 e>e | e2 d>c B4 | c2 B>A ^G2 A>B | A4 A4 :: e4 B4 | c2 e4 dc | B6 f2 | e3 d c2 B2 | 
 A4 A4 :|  