Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/8
M:4/4
K:Bmin
['fB B2 fBdB', "fbba b2 ab c'bac'"]  
X:1
L:1/8
M:4/4
K:Bmin
|: fB B2 fBdB | cBAB cdeg | fB B2 fBdB | cBAc Ba^ga | fB B2 fBdB | cBAc Bcde | fece aece | 
 fecA Bcde :| fbba b2 ab | c'bac' bafe | fbba b2 ab | c'bac' b2 ba | fbba b2 ab | c'bac' bafe | 
 fece aece | fecA Bcde | fbba b2 ab | c'bac' bafe | fbba b2 ab | c'bac' b2 bc' | d'c'bd' c'bac' | 
 bfaf edcA | Bcde fgfe | dBcA B2 de ||  