Construct a music composition that complies with the designated structure and theme.
X:1
L:1/8
M:2/2
K:C
['G2 c2 defe dc', 'f2 e2 g4 fe f2 f4 gf'  
X:1
L:1/8
M:2/2
K:C
 G2 | c2 defe dc | Bc d2 d2 G2 | c2 defe dc | g4 c'2 G2 | c2 defe dc | (Bc) d2 d2 G2 | 
 A2 c2 B2 AB | c6 :: f2 | e2 g4 fe | f2 f4 gf | e2 dc B2 c2 | d4 d2 f2 | e2 g4 fe | f2 f4 gf | 
 e2 dc c3 B | c6 :|  