Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:4/4
K:Bmin
['fgfe dBAB GBdB']  
X:1
L:1/8
M:4/4
K:Bmin
|:"Bm" fB B2 fgfe |"G" dBAB GBdB |"A" cAAd AAeA | Aaec"F#m" Aceg |"Bm" fB B2 fgfe |"G" dBAB GBdB | 
"A" cABc defg |"F#m" afec"Bm" B3 e ::"Bm" f2 dB"G" GBdB |"A" caec dB B2 |"Bm" f2 dB"G" GBdB | 
"F#m" caec Bcde |"D" fd d2 fgfe |"G" dBAB GBdB |"A" cABc defg |"F#m" afec"Bm" B3 e :|  