Construct a melodic piece using the designated alphabetic pattern and the provided musical theme.
X:1
L:1/8
M:2/4
K:G
['ed BG', 'BG d>d Bd ed BG AB/c/ BA']  
X:1
L:1/8
M:2/4
K:G
"G" GA/G/ ED | GB d2 | ed BG |"D" A/B/A/G/ ED |"G" GA/G/ ED | GB d2 | ed BG | AG G2 :| d>d Bd | 
 ed BG |"D" A>A Bd |"G" ed BG | d>d Bd | ed BG |"D" AB/c/ BA |"G" G4 :|  