Develop melodies utilizing the stated letter notation and the provided theme.
X:1
L:1/8
M:3/4
K:F
['(FGABcd) A4']  
X:1
L:1/8
M:3/4
K:F
 C2 | (FGABcd) | c2"_>" A4 | B2 (Bd)(GB) | A2 (Ac)(AF) | (FGABcd) | c2"_>" A4 | (Bd)(GB)(EG) | 
 F2 F2 :|  