Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:4/4
K:D
['DDF/G/ A3']  
X:1
L:1/8
M:4/4
K:D
 DDF/G/ | A3 Fd>cB>A | AG G2 z GEF | G3 GGBAG | F4 z DDF/G/ | A3 Fd>cB>A | AG G2 z GEF | G3 GGBAG | 
 F4 z ABA | E3 DCEBA/G/ | F2 z3 ABA | E3 DCEBA/G/ | F2 z3 DDF/G/ | A3 AAdfd | d2 B2 z dcB | 
 A3 ABAGA | F4 z |]  