Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/8
M:3/8
K:Ab
['E A2 A A>GA B2 G E2']  
X:1
L:1/8
M:3/8
K:Ab
 E | A2 A | A>GA | B2 G | E2 c | A3- | AzA | d2 d | d>cB | c2 c | e2 c | BBB | B>cB | A2 B | c3 | 
 A>GF | B>AG | A3- | A z |]  