Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/4
M:4/4
K:G
['G G', 'B c']  
X:1
L:1/4
M:4/4
K:G
 D | G G G G | F E D D | E E F F | G3 G | c c c c | B B B B | A G F E | D3 D | G A B G | E3 E | 
 A B c A | F3 D | d d c B | A B c d | D D E F | G3 :: D | G G A A | B3 G/A/ | B B c c | d3 d | 
 e d c B | A B c d | D D E F | G3 :|  