Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/8
M:6/8
K:G
['Ddd Dcc BGE D3 DFA cBA', 'ceg gfe dBG D3 DFA cBA'  
X:1
L:1/8
M:6/8
K:G
|: Ddd Dcc | BGE D3 | DFA cBA | GBe d3 | Ddd Dcc | BGE D3 | DFA cBA | GBA G3 :: ceg gfe | dBG D3 | 
 DFA cBA | GBe d3 | ceg gfe | dBG D3 | DFA cBA | GBA G3 :|  