Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
M:2/2
K:G
['B2 AB', 'dggf feed', 'cde e2 a', 'e GAB B2 e eBd cBA BFA'  
X:1
L:1/8
M:2/2
K:G
 D | DGGA B2 AB | cBAG{G} A3 D | DGGE EAAE | DGGA BdAB | GGGA B2 AB | cBAG A3 D | GFGA Bcde | 
 gBcA G3 :: d | Bddd g2 fa | gfe^d e3 d | dggf feed | dggf feed | GFGA c2 Be | dcBc A3 D | 
 GFGA (3(Bcd) (3(efg) | (3(dcB) (3(cBA) G3 ::[M:6/8][K:A] cde e2 a | cde e2 a | cde e2 a | 
 ecA BGE | cde e2 a | cde e2 a | gbg faf | Bc^d e3 :: GAB B2 e | GAB B2 e | eBd cBA | BFA GFE | 
 cde e2 a | def f2 a | fdf ecA | EFG A3 |]  