Develop melodies utilizing the stated letter notation and the provided theme.
X:1
L:1/8
M:4/4
K:D
['', 'D2 DF', 'B<d A>F D2']  
X:1
L:1/8
M:4/4
K:D
 FE |: D2 DF ABdf | D2 DF EDB,A, | D2 DF ABdf |1 gbaf dBAF :|2 gbaf dABd || gbfa efdA | 
 g>f e>d B2 df | gbfa efdA | B<d A>F D2 Af | gbfa efdA | g>f e>d B2 Af | gf{f}ed ecdA | 
 B<d A>F D2 FE ||  