Generate music that aligns with the specified structural requirements.
Only One Section  
X:1
L:1/8
M:2/4
K:G
 D | G G G A | _B2 A B | A F E D | G3 A | F G _B d | _B2 A F | A A G F | E3 | A | F A c c | 
 d2 _B G | _B A G F | E2 z E | D G G G | c_B G dc | _B A G A | B2 z x |]  