Construct a melodic piece using the designated alphabetic pattern and the provided musical theme.
X:1
L:1/8
M:6/8
K:G
['g2 e dBG AGE DGG FGA']  
X:1
L:1/8
M:6/8
K:G
|: G3 g2 e | dBG AGE | DGG FGA | B3 AGE | G2 g g2 e | dBG AGE | DGG FGA | BGF G3 :|  