Compose a piece following the given musical structure and incorporating the provided motif.
X:1
L:1/8
M:4/4
K:D
['ABAF DFAF', 'ABde f2 df'  
X:1
L:1/8
M:4/4
K:D
 ABAF DFAF | G2 BG dGBG | ABAF DFAF | GBAF E2 D2 :| ABde f2 df | g2 eg fedB | ABde f2 df | 
 afdf e2 d2 :|  