Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/8
M:2/2
K:Bmin
['fBBA FEFB A2 FB ABde', 'd3 f a2 fa bfaf'  
X:1
L:1/8
M:2/2
K:Bmin
 fBBA FEFB | A2 FB ABde | fBBA FEFA | B2 BA B2 de | fBBA FEFB | A2 FB ABde | f2 af effe |1 
 dBAF B2 de :|2 dBAF B3 A |: d3 f a2 fa | bfaf effe | d3 f a2 fa | bfaf e2 fe | d3 f a2 fa | 
 bfaf efde | fBBA FEFA | ABBA B3 a :|  