Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/8
M:4/4
K:D
['', 'defd egfd', 'BdcA G2-']  
X:1
L:1/8
M:4/4
K:D
|: dB || AddA defd | egfd B2- Bd | cddc dgfg | ggfa agec | dddA defd | egfd Bgfa | a2 ga gecd | 
 effe d2 :: cA | BdcA G2- G A | c2- cA de f2 | fgfa agec | dddf fdcA | BdcA G2- GA | c2- cAdg fa | 
 a2 ga gecd | effe d2 :|  