Compose a piece of music following the specified structure and theme.
X:1
L:1/8
M:2/4
K:Emin
['Bd eB A2', 'ge dB'  
X:1
L:1/8
M:2/4
K:Emin
|: Bd eB | A2 Bd | eB A2 | AG E2 | Bd eB | A2 BA | GA AG | A2 AG | Bd eB | A2 Bd | eB A2 | AG E2 | 
 ea ae | ge da | ae ge | dB AG :: eg g2 | ge dB | G2 AG | AB dB | eg gf | ge dB | GA AG | A2 A2 | 
 eg gf | ge dB | GA AG | AB d2 | ea ae | ge da | ae ge | dB AG :|  