Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
M:2/2
K:Amix
['[A,E]2 abag [A,E]2 g2 gagf e2 a2', 'cABc [EA]3 e [EA]2 AB cAcA BcBG', 'Ac B2'  
X:1
L:1/8
M:2/2
K:Amix
|: [A,E]2 abag | [A,E]2 g2 gagf | e2 a2 a2 ef | gfed cABc :: [EA]3 e [EA]2 AB | cAcA BcBG | 
 A3 e A2 ef | gfed cAB^G :: [EA]2 Ac B2 B2 | A2 Ac BAGE | A2 Ac B2 Bf | gfed cAB^G :|  