Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
Q:3/8=90
M:6/8
K:D
['DFA AFA', 'ecA BdB AFD']  
X:1
L:1/8
Q:3/8=90
M:6/8
K:D
 DFA AFA | BdB AFD | DFA AFA | B3 d2 z | DFA AFA | BdB AFD | dfd ecA | B3 d2 z :: dfd ecA | 
 BdB AFD | dfd ecA | B3 d2 z | faf ecA | BdB AFD | DFA AFA | B3 d2 z :|  