Construct a music composition that complies with the designated structure and theme.
X:1
L:1/8
M:4/4
K:G
['GABe dBBe dBBe d2 BA GABe dBBg', 'cA gage fddf gage f2 ed gaba'  
X:1
L:1/8
M:4/4
K:G
 GABe dBBe | dBBe d2 BA | GABe dBBg | gage d2 cA :: gage fddf | gage f2 ed | gaba gfed | 
 efge d2 BA :|  