Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
Q:1/8=120
M:6/8
K:G
['BGG DGG BGB dcB']  
X:1
L:1/8
Q:1/8=120
M:6/8
K:G
 d/c/ |"G" BGG DGG | BGB dcB |"Am" cAA DAA | cAc edc |"G" BGG DGG | BGB dcB |"Am" cBc"D" Adc | 
"G" BGG G2 :: d |"G" gfg GBd | gfg bag |"D" fef FAd | fef agf |"C" egg"D" dgg |"C" cgg"G" Bgg | 
"C" cBc"D" Adc |"G" BGG G2 :|  