Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/8
M:4/4
K:Emin
['G2 BG', 'f2 e^c dBAF']  
X:1
L:1/8
M:4/4
K:Emin
|: F | G2 BG F2 AF | EBBA BGEF | G2 BG FGAc | BdAG FDD :: g | f2 e^c dBAF | EBBA BGEg | 
 f2 e^c dBAF | GBAG FDD :|  