Develop melodies utilizing the stated letter notation and the provided theme.
X:1
L:1/8
Q:1/8=200
M:4/4
K:D
['A2 AF', 'd2 df edcB']  
X:1
L:1/8
Q:1/8=200
M:4/4
K:D
 B | A2 AF A2 AF | B2 BA BcdB | A2 AF A2 AF | BAFD E2 D :| A | d2 df edcB | ABcd efge | 
 d2 df edcB | AFDF E2 (DA) | d2 df edcB | ABcd efge | afdf edcB | AFDF E2 D |]  