Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/8
M:2/2
K:G
['dGBG dG B2', 'efge dG B2']  
X:1
L:1/8
M:2/2
K:G
 g | dGBG dG B2 | dGBG Bddg | dGBG dG B2 | cABG Bee :| g | efge dG B2 | efgd Bddg | efge dG B2 | 
 cABG Beeg | efge dG B2 | efge fgaf | bfge dg B2 | cABG Bee ||  