Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
M:4/4
K:G
['g3 f agfe d^cde dedB GedB', 'ABcB AGFA GABc d3 d dcAc cBGB'  
X:1
L:1/8
M:4/4
K:G
 dS | g3 f agfe | d^cde dedB | GedB GedB | c2 A2 A3 d | g3 f agfe | d^cde dedB | GedB dcAB | 
 G2 g2 g3 |]"^8va   _   _   _" !fermata!B | ABcB AGFA | GABc d3 d | dcAc cBGB | AGAB A3 B | 
 ABcB AGFA | GABc d3 d | dcAc cBGB | AFGE DD"^D.C."EFS |]  