Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:4/4
K:Bmin
['f2 Bc dfed', 'B2 ba faed']  
X:1
L:1/8
M:4/4
K:Bmin
|: f2 Bc dfed | cAeA aece | f2 Bc dfed | caec dB B2 | f2 Bc dfed | cAce aecA | BcdB cdeg | 
 faec dBBA :: B2 ba faed | cAeA aecA | B2 ba faed | caec dBBA | B2 ba faed | cAeA aecA | 
 BcdB cdeg | faec dB B2 :|  