Form a musical piece based on the provided motif while observing the defined structure.
X:1
L:1/8
M:6/8
K:D
['(c/d/) eee eee', 'cBA ddd'  
X:1
L:1/8
M:6/8
K:D
 (c/d/) | eee eee | efe cBA | ddd fed | cAc e2 (c/d/) | eee eee | efd cBA | ddd fga | gec d2 :: 
 (f/g/) | aga fef | fed cBA | ddd fed | cAc e2 (f/g/) | aaf gge | ffd cBA | ddd fga | gec d2 :|  