Create a melody and harmony adhering to the specified musical parameters.
Only One Section  
X:1
L:1/4
M:2/2
K:G
 D | G3/2 F/ E D | E3/2 E/ D D | G G A A | B d A G | G2 z G | F A A D | G B B d | c A A d | 
 B G G D | G F E D | E2 D D | G2 A c | B d A2 | G2 z |]  