Create a composition following the given musical structure and theme.
X:1
L:1/8
M:2/4
K:Dmix
['FG (A2 A)B cD FG AB cA', 'fg a/b/a/g/ fa'  
X:1
L:1/8
M:2/4
K:Dmix
|: FG (A2 | A)B cD | FG AB | cA GB/G/ | FG A2 | AB ce | fg/f/ ed |1 cA GA/G/ :|2 cA G2 |: 
 fg a/b/a/g/ | fa ge | fg a/b/a/g/ | fa g2 | fg a/b/a/g/ | fa ge | fd ec | AF G2 :|  