Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
M:2/2
K:D
['D3 D D2 FE DE FA B2', 'B2 A2']  
X:1
L:1/8
M:2/2
K:D
 D3 D D2 FE | DE FA B2 A2 | BA FA BA FD | EF ED B,D A,2 | D3 D D2 FE | DE FA B2 A2 | BA FA Bc de | 
 fa ec d4 :: f3 f fg fe | de fd B2 A2 | Bd Ad Bd AF | EF ED B,D A,2 | D2 DD D2 FE | DE FA B2 A2 | 
 BA FA Bcde | fa ec d4 :|  