Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
Q:1/2=100
M:2/4
K:G
['g dBAG FAAc BGBd g2 fe dGBG', 'dGBG FAAc']  
X:1
L:1/8
Q:1/2=100
M:2/4
K:G
 g | dBAG | FAAc | BGBd | g2 fe | dGBG | FAAc | EGFA | G2 G :| d | ggfg | afdd | ggfg | a2 dd | 
 ggfg | afed | (ef/g/) (fg/a/) | g3 f/e/ | dGBG | FAAc | BGBd | g2 fe | dGBG | FAAc | EGFA | 
 G2 G |]  