Construct a music composition that complies with the designated structure and theme.
X:1
L:1/8
Q:1/4=110
M:6/8
K:D
['A G']  
X:1
L:1/8
Q:1/4=110
M:6/8
K:D
 D D F | A2 A B2 B | A3 d c d | e2 d (cd) B | A2 z A d d | F3 A G F | E3 A A A | B3 A G E | 
 D2 z A G F | F3 A G F | E3 A A A | B3 A G E | D3- D z2 ||  