Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
M:6/8
K:D
['d2 d e2 e f3 f2 f', 'AFD AFD']  
X:1
L:1/8
M:6/8
K:D
 A | d2 d e2 e | f3 f2 f | gec gec | dfd ABc | d2 d e2 e | f3 f2 f | gec gec | d2 d d2 :| B | 
 AFD AFD | ABc dcB | AFD AFD | BGE E2 B | AFD AFD | ABc dcB | AFD GEC | DFA d2 :|  