Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/16
Q:1/4=100
M:2/4
K:D
['Adfa g2(fe)', 'd2d2 B2cd e4 c4']  
X:1
L:1/16
Q:1/4=100
M:2/4
K:D
 Adfa g2(fe) | Adfa ^g2a2 | Adfa g2(fe) | (Ad)fd e4 :: d2d2 B2cd | e4 c4 | d2d2 B2cd | e4 c4 | 
 Acef g2fe | d6 z2 :|  