Compose a piece adhering to the given musical structure and theme.
X:1
L:1/8
M:2/4
K:Bmin
['FB Bc dB', 'f2 df ec cd ef/e/ dc'  
X:1
L:1/8
M:2/4
K:Bmin
 FB Bc | dB Bd | cA Ac | d/c/B/A/ BA | FB Bc | dB cd | ef/e/ dc | BA B2 :| f2 df | ec cd | 
 ef/e/ dc | Bc de | f2 df | ec cd | ef/e/ dc | BA B2 :|  