Create a musical composition using the given motif and adhering to the specified musical form represented by alphabet characters.
X:1
L:1/8
M:6/8
K:G
['B2 G', 'A2 A', 'd2 d']  
X:1
L:1/8
M:6/8
K:G
|: B2 B d2 d | cBA B2 G | GFG BAG | FED B2 G | B2 B d2 d | cBA B2 G | GFG BAG | FEF G3 :: 
[K:D] A2 A F2 F | GAB A3 | A2 A F2 F | GAB A3 | d2 d c2 c | B2 B A2 A | G2 G F2 F | EFE D3 :: 
[K:G] d2 d d2 d | cdc B2 B | A2 B c2 A | B2 c d2 d | d2 d d2 d | cdc Bcd | e2 d c2 B | AGF G3 :|  