Develop a piece of music by incorporating the provided motif and following the outlined musical structure represented by alphabet characters.
X:1
L:1/8
M:4/4
K:Bmin
['f2 Bc defd e2 cAeA (3cde fBBc', 'b2 fb']  
X:1
L:1/8
M:4/4
K:Bmin
 f2 Bc defd | e2 cAeA (3cde | fBBc defg | afec fB B2 | f2 Bc defd | e2 cAeA (3cde | fBBc defg | 
 afec fB B2 || b2 fb bafe | (3cde fg a3 a | b2 fb babc' | afec fB B2 | b2 fb bafe | (3cde fg a3 a | 
 bgaf gefg | (3agf ec cB B2 ||  