Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
M:2/2
K:D
['(3fga eg', 'fdef gbag fdde :|2 (3Bcd ce dfef']  
X:1
L:1/8
M:2/2
K:D
 dcdB A<FFA | G<EEG FD D2 | dcdB A<FFe |1 (3fga eg fddc :|2 (3fga eg fdde |: (3fed ad fdad | 
 (3cBA eA fAeA |1 (3fed ad fdef | gbag fdde :|2 (3Bcd ce dfef | gbag (3fed ec ||  