Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
M:6/8
K:Bmin
['B2 f fed', 'fed cBc']  
X:1
L:1/8
M:6/8
K:Bmin
|: B2 f fed | edc dcA | B2 f fed | faf e2 A | B2 f fed | edc dcB | cBc AFE |1 FBA B2 A :|2 
 FBA B2 c |: dcd B2 c | d2 f fed | cBc A2 B | caf edc | dcd B2 c | d2 f fed | cBc AFE |1 
 FBA B2 c :|2 FBA B2 A ||  