Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:6/8
K:Dmix
['A2 G ABc', 'd2 e =f2 d e2 d dcA']  
X:1
L:1/8
M:6/8
K:Dmix
 (F/G/) | AFD DEF | A2 G ABc | AGE cEE | ECD EFG | AFD DFG | A2 G ABc | GFE cEE | EDD D2 :: A | 
 d2 e =f2 d | e2 d dcA | AGE cEE | GAG GAB | d2 e =f2 d | e2 d dcA | GFE cEE | EDD D2 :|  