Compose a piece of music based on the provided motif and adhering to the outlined musical structure.
X:1
L:1/8
Q:1/2=100
M:2/2
K:A
['a2 e/f/g aece dBcA', 'A2 ecAc e/f/g af ecAc d/c/B/A/ GB'  
X:1
L:1/8
Q:1/2=100
M:2/2
K:A
 a2 e/f/g aece | dBcA BG E2 | a2 e/f/g aece | dBcA B/c/B A2 :: ecAc e/f/g af | ecAc d/c/B/A/ GB | 
 c2 ec d2 fd | cABG A2 A2 | ecAc e/f/g af | ecAc d/c/B/A/ GB | dfdf cece | c/B/A Bc A2 A2 :|  