Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/8
Q:1/4=100
M:6/8
K:G
['B D2 E G2 A', 'G2 d gfg b2 g fdf a2']  
X:1
L:1/8
Q:1/4=100
M:6/8
K:G
 B | D2 E G2 A | Bdg dBG | gag efg | dBG A2 B | D2 E G2 A | ege dBG | g2 e dBG | BGG G2 || d | 
 gfg b2 g | fdf a2 f | e^de gdB | Bee e2 g | gfe dcB | ABG FED | Bdg gdc | BGG G2 |]  