Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/8
M:4/4
K:G
['B3 G A2 Bc']  
X:1
L:1/8
M:4/4
K:G
 B3 G A2 Bc | d2 cA BG G2 | B3 G A2 Bc | dfeg fddc | B3 G A2 Bc | dBcA BGGA | B3 G A2 Bc | 
 dfeg fdde ||  