Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
M:4/4
K:Emin
['', 'BEEF GBdB AFDE FGAc BEEF GABc dBAc', 'E2 Bdef gfge defg'  
X:1
L:1/8
M:4/4
K:Emin
 dc || BEEF GBdB | AFDE FGAc | BEEF GABc | dBAc BE E2 | BEEF GBdB | AFDE FGAc | BEEF GABc | 
 dBAc BE E2 || Bdef gfge | defg afed | Bdef gfed | BdAc BE E2 | Bdef gfge | defg afdf | 
 g2 ba gfed | BdAc BE E2 ||  