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:4/4
K:Gmin
['GABd cAFA', 'f2 fd cAFA']  
X:1
L:1/8
M:4/4
K:Gmin
 GABd cAFA | BGGB AGFE | GABd cAFA | AGFD G2 G2 :| f2 fd cAFA | f2 fa ga a2 | f2 fd cAFA | 
 AGFD DG G2 | f2 fd cAFA | f2 fa ga a2 | baag fdcA | AGFD DG G2 ||  