Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:4/4
K:G
['', 'D2 G2 BG AGBG cGAG B2 BG', 'B2 ABAG']  
X:1
L:1/8
M:4/4
K:G
 D2 |: G2 BG AGBG | cGAG B2 BG | ABAG F2 AB | AGFD (3EFE D2 | G2 BG AGBG | cGAG B2 BG | 
 ABAG FDEF |1 G4 G2 D2 :|2 G4 G2 F2 || E4 G4 | c6 B2 | ABAG F2 AB | AGFD (3EFE D2 | E4 G4 | c6 B2 | 
 ABAG FDEF |1 G4 G2 F2 :|2 G6 D2 ||  