Develop melodies adhering to the specified musical structure and using the offered theme.
X:1
L:1/8
M:2/4
K:F
['ccdf c4 fd/c/AG F4 cD F2 Ffdc']  
X:1
L:1/8
M:2/4
K:F
 ccdf | c4 | fd/c/AG | F4 | cD F2 | Ffdc | cF/G/cA/G/ | F4 | F>GAA | GcA/G/F | GGGD | F>D C2 |]  