Construct a musical composition following the designated musical form and incorporating the given motif.
X:1
L:1/8
M:6/8
K:G
['BGA B2 g', 'bag a2 g'  
X:1
L:1/8
M:6/8
K:G
 d/c/ | BGA B2 g | fdd edc | BGA B2 g | fdB c2 d/c/ | BGA B2 g | fdc dga | bag fdc | dgf g2 :: 
 g/a/ | bag a2 g | fdc dga | bag a2 g | fdf g2 g/a/ | bag a2 g | fdc dga | bag aeg | fdf g2 :|  