Form a musical piece based on the provided motif while observing the defined structure.
X:1
L:1/8
M:6/8
K:A
['cdc cBA', 'a2 e f2 e'  
X:1
L:1/8
M:6/8
K:A
 cdc cBA | cde f2 e | cdc cBA | B3 e2 d | cdc cBA | cde f2 d | Ace B=GB | A3 A3 :: a2 e f2 e | 
 a2 e f2 e | cdc cBA | BcB B2 e | a2 e f2 e | a2 e f2 e | cAc B=GB | A3 A3 :|  