Construct a melodic piece using the designated alphabetic pattern and the provided musical theme.
X:1
L:1/8
Q:1/8=232
M:4/4
K:G
['dc Bc', 'BG DG']  
X:1
L:1/8
Q:1/8=232
M:4/4
K:G
|: dc | Bcde dc Bc | dB gB bB gd | Bc de dc Bc | Aa ag fe dc | Bc de dc Bc | dB gB bB gd | 
 cB AG FD EF | G2 B2 G2 :: GA | Bc BA G2 BG | DG BG DG Bd | Bc BA G2 BG | FG AB ce dc | 
 Bc BA G2 BG | DG BG DG Bd | cB AG FD EF | G2 B2 G2 :|  