Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:2/4
K:Eb
['c e']  
X:1
L:1/8
M:2/4
K:Eb
 c2 G B | c g e f | g f/ e/ c e | c B G2 | G B G B | c g e c | B4 | c B/ c/ e c | B4 | c e c B | 
 G F G2 | c e c B | c e c B | G F G2 | c/ c/ c/ c/ e2 | G/ G/ G/ F/ G2 | c e c/ e/ c/ B/ | G F G2 | 
 c e c/ e/ c/ B/ | G F G2 | c e c/ e/ c/ B/ | c e c B | G F G2 | G3/2 B/ G3/2 B/ | G B G B | 
 G B G B | c3/2 B/ G F | E3 C | E E2 G | F D C B, | C4 |]  