Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/4
M:2/2
K:G
['c B A G', 'c B']  
X:1
L:1/4
M:2/2
K:G
 G/A/B/c/ | d2 c B | A G c B | A G F E | D2 G/A/B/c/ | d2 c B | A G c B | A G A F | G2 :: B G | 
 A d c B | A G B G | A d c B | A2 G/A/B/c/ | d2 c B | A G F E | D2 G/A/B/c/ | d2 c B | A G c B | 
 A G A F | G2 :|  