Develop melodies adhering to the specified musical structure and using the offered theme.
X:1
L:1/8
Q:1/4=120
M:2/4
K:F
['F3 G (AF)', 'c4 c3 d ec f2 |{B} A2'  
X:1
L:1/8
Q:1/4=120
M:2/4
K:F
 F3 G | (AF) d2 | cAGF | (GE) C2 | F3 G | (AF) f2 | ecd=B | c4 :: c3 d | ec f2 |{B} A2 GF | EG C2 | 
 B3 d | cEFB | A2 TG2 | F4 :|  