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 G']  
X:1
L:1/8
M:6/8
K:G
 G2 G G2 G | A2 F FED | GFG Bcd | cBA d3 | e2 e d2 d | ABA FED | GBd cBA | GBA G2 ||  