Develop musical compositions in line with the specified format and incorporating the provided musical theme.
X:1
L:1/8
M:4/4
K:Bmin
['f2 Bc dfed', 'f2 ba faed'  
X:1
L:1/8
M:4/4
K:Bmin
|: f2 Bc dfed | cAce aece | f2 Bc dfed | cdec dB B2 | f2 Bc dfed | cAce aecA | BcdB cdeg | 
 fedc dB B2 :: f2 ba faed | cAce aece | f2 ba faed | cdec dB B2 | f2 ba faed | cAce aecA | 
 BcdB cdeg | fedc dB B2 :|  