Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
Q:3/8=110
M:6/8
K:D
['cde efg', 'aec ecA']  
X:1
L:1/8
Q:3/8=110
M:6/8
K:D
"_No time signature given - key given as G" cde e2 a | cAc e2 d | cde efg | BGB d2 B | cde efg | 
 agf edc | dfd cec | BGB d2 B"^1" :: aec ecA | aec efg | aec ecA | BGB d2 B | aec ecA | aec efg | 
 fdf ece | BGB d2 B :|  