Develop a musical composition by incorporating the suggested motif and by following the prescribed format.
X:1
L:1/8
M:6/8
K:G
['D G2 G GBG BAB c2', 'Bcd gag'  
X:1
L:1/8
M:6/8
K:G
 D | G2 G GBG | BAB c2 c | dcB ABc | BAB G2 D | G2 G GBG | BAB c2 e | dcB ABc | BGF G2 :: Bcd gag | 
 BBB B3 | efg aba | ddd d3 | Bcd gag | dcB A2 e | dcB ABc | BGG G2 :|  