Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:3/4
K:G
['B2 G2']  
X:1
L:1/8
M:3/4
K:G
 GG B2 c2 | dd B2 G2 | Bd B2 G2 | cc e2 e2 | g6 | d4 ec | B4 GE | DD F2 FA | G6 |]  