Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
M:4/4
K:D
['D2 FA BABc', 'd2 fd Adfa']  
X:1
L:1/8
M:4/4
K:D
 F | D2 FA BABc | dfed BE E2 | D2 FA BABc | dBAG FG A :| B | d2 fd Adfa | g2 fg eB B2 | 
 d2 fd Adfa | (3fga ea fddc | d2 fd Adfa | (3gag fg eB B2 | f3 e d3 B | A2 AG FG A ||  