Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:4/4
K:D
['F/G/F EF DEFG A/B/A GB A2 de', 'fefg ageg fefg a2 e/f/g agec dfec', 'e fefg ageg fefg a2 e/f/g agec']  
X:1
L:1/8
M:4/4
K:D
 AG | F/G/F EF DEFG | A/B/A GB A2 de | fefg agec | dcAF GBAG | F/G/F EF DEFG | A/B/A GB A2 de | 
 fdge agec | d2 dc d2 :| de | fefg ageg | fefg a2 e/f/g | agec dfec | dcAF G2 eg | fefg ageg | 
 fefg a2 e/f/g | agec dfec | Addc d3 e || fefg ageg | fefg a2 e/f/g | agec dfec | dcAF GBAG | 
 F/G/F EF DEFG | A/B/A GB A2 de | fdge agec | d2 dc d2 ||  