Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/8
Q:1/2=100
M:4/4
K:G
['(BG)(BG) (Ac) c2 BGBG DA A2 BGBG', 'A2 (dB)(dB) (ce) e2 cAcA Bd d2', 'gedB gedB']  
X:1
L:1/8
Q:1/2=100
M:4/4
K:G
|: (BG)(BG) (Ac) c2 | BGBG DA A2 | BGBG (ABc)d | (edc)B A2 A2 :: (dB)(dB) (ce) e2 | cAcA Bd d2 | 
 BGBG ABcd | egdc BG G2 :: gedB gedB | gedB cA A2 | gedB gedB | cedc BG G2 :|  