Create a musical piece that integrates the provided motif and follows the prescribed alphabetical structure.
X:1
L:1/8
M:6/8
K:D
['AFA GFG', 'd2 a gfe fdB']  
X:1
L:1/8
M:6/8
K:D
 D3 AFA | GFG ABA | DED D2 d | =cAG EcC | DED AFA | GFG ABc | d2 d fdc | dec d3 :| d2 a gfe | 
 fdB AFA | dfa gfe | dfB BAc | d2 a gfe | fdB GFG | EFE gfg | edB A3 :|  