Form a musical piece based on the provided motif while observing the defined structure.
X:1
L:1/8
M:6/8
K:G
['A2 A']  
X:1
L:1/8
M:6/8
K:G
 D | DFG A2 A | B2 B A2 A | BGB(dc) B | A3- A2 A | A2 B F2 G | F2 E D2 A | BAG F2 E | D3- D2 ||  