Construct a music composition that complies with the designated structure and theme.
X:1
L:1/8
M:6/8
K:G
['G2 G AFD dBG AFD d2 d', 'B2 A GGG d2 c BBB g2'  
X:1
L:1/8
M:6/8
K:G
 G2 G AFD | dBG AFD | d2 d e2 d | dcB A3 | G2 G AFD | dBG AFD | d2 d e2 d | cBA G3 :: B2 A GGG | 
 d2 c BBB | g2 f e2 d | dcB A3 | B2 A GGG | d2 c BBB | g2 d e2 d | cBA G3 :|  