Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/8
Q:1/4=190
M:3/4
K:G
['g4 f2 e3 f ed cd cB', 'Bd cB AF']  
X:1
L:1/8
Q:1/4=190
M:3/4
K:G
 g4 f2 | e3 f ed | cd cB AG | F2 DF Ac | f4 e2 | d4 c2 | BA Bc BA |1 B3 G Bd :|2 G4 D2 |: 
 BG DG Bd | BG DG Bd | cB AF Ac | B2 G2 D2 | BG DG Bd | BG DG Bd | cB AF DF |1 G4 D2 :|2 G4 Bd ||  