Construct a music composition that complies with the designated structure and theme.
X:1
L:1/8
M:4/4
K:G
['BfdB AecA BcdB F2 BA', 'B2 (2:3:2dcB Acf=e fdcB Acf=e fagf =efga'  
X:1
L:1/8
M:4/4
K:G
|: (3FGA | BfdB AecA | BcdB F2 BA | GBcd edcB | Acfe (3agf (3edc | BfdB AecA | BcdB F2 BA | Ggfe | 
 dcBA | c2 B2 B2 :: (2:3:2dcB | Acf=e fdcB | Acf=e fagf | =efga bgeg | f=efg f2 f_e | dedc Bd g2 | 
 cdcB Ac f2 | gbag fedc | B2 d2 B2 :|  