Design harmonic structures to improve the musical piece.
|: dd d/B/G/B/ | dd d/B/G/B/ | c>c B>B | AA G2 :: AA DD | GB d2 | 
 c>c B>B | AA G2 :|  
X:1
L:1/8
M:2/4
K:G
|:"G" dd d/B/G/B/ | dd d/B/G/B/ |"C" c>c"G" B>B |"D7" AA"G" G2 ::"D7" AA DD |"G" GB d2 | 
"C" c>c"G" B>B |"D7" AA"G" G2 :|  