Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/8
M:4/4
K:G
['e2 fe ecBA', 'a/b/a ga', 'dBAG EAAG A2', 'G2 g2 e/f/g gedg eaa^g a2 ef'  
X:1
L:1/8
M:4/4
K:G
 e2 fe ecBA | FBBA B/c/B Ac | e2 fe ecBA | FAAG ABcd | eafe ecBA | FBBA Bcdf | e2 fe ecBA | 
 FAAG A2 || a/b/a ga fece | fbb^a b=afg | a2 ga fece | faag aAce | abga fece | fbb^a b2 c/d/e | 
 a/b/a ga f2 ce | faag a2 || d2 g/f/e dBAG | EAAG A2 Bc | dBeB d2 B/A/G | DGGF G2 A/B/c | 
 dge^c dBAG | EAAG A2 G/A/B | dBeB dBAG | DGGF G2 || g2 e/f/g gedg | eaa^g a2 ef | gGdg edBd | 
 eggf gG B/c/d | gafg efdg | eaa^g aA B/c/d | g/a/g fg e/f/e Bd | eggf g2 ||  