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:D
['dAFA BAFA dAfA BAFA EFGA', 'gB B2']  
X:1
L:1/8
M:4/4
K:D
 dAFA BAFA | dAfA BAFA | EFGA BAGF | EFGA BABc | dAFA BAFA | dAfA BAFA | EFGA BcdB | AFEF D4 :| 
 fA A2 BAfA | A2 FA dA A2 | gB B2 B2 gB | B2 gB gB B2 | fA A2 BAfA | A2 dA fAdA | BAGF GBdB | 
 AFEF D4 :|  