Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
M:4/4
K:G
['', 'dc BG G2 DG G2 BcdB', 'dc Bdef gfed']  
X:1
L:1/8
M:4/4
K:G
 dc |: BG G2 DG G2 | BcdB G2 Bd | eAAG ABAG | FGAF D2 dc | BG G2 DG G2 | BcdB Ggfg | eAAG ABAG | 
 FDEF G2 dc :| Bdef gfed | BcdB G2 dc | Bdef gfed | cABG A2 dc | Bdef gfed | BcdB Ggfg | 
 eAAG ABAG |1 FDEF G2 dc :|2 FDEF G4 ||  