Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/8
M:4/4
K:G
['GB B2', 'dG G2', 'e2 Be']  
X:1
L:1/8
M:4/4
K:G
|: GB B2 GBdB | GB B2 AFED | GB B2 GBdB |1 c2 Bc A2 FD :|2 c2 Bc AGFD |: E2 BE E2 BE | 
 E2 BE A2 FD | E2 BE E2 BE |1 c2 Bc A2 FD :|2 c2 Bc AFED |: dG G2 dG G2 | dG G2 A2 FD |1 
 dG G2 dG G2 | c2 Bc AFED :|2 C2 EG D2 FA | c2 Bc d2 Bd |: e2 Be e2 Be | e2 Be ffdf | 
 e2 Be e2 Be |1 f2 ef d2 (3Bcd :|2 f2 ef dABA ||  