Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/8
M:6/8
K:G
['BGG DGG BGB dcB', 'G2 g/a/ bgg dgg bgb bag aff']  
X:1
L:1/8
M:6/8
K:G
 d | BGG DGG | BGB dcB | cAA DAA | cAc edc | BGG DGG | BGB dcB | cBc Adc | BGG G2 :: g/a/ | 
 bgg dgg | bgb bag | aff dff | afa agf | egg dgg | cgg Bgg | cBc Adc | BGG G2 :|  