Design various chord structures to improve the overall harmony of the assigned musical composition.
f4 | e4 | d4 | c4 | Bc/d/ cB | AB/c/ BA | GA/B/ AG |1 FF Ac :|2 
 F2 z2 |: C>F AF | E>G Bc | dc BG | dc AF | C>F AF | E>G Bc | 
 dc BG | FF F z :: cF/A/ cF | d/c/B/G/ E2 | BE/G/ BE | d/c/A/F/ C2 | 
 cF/A/ cF | d/c/B/G/ E2 | BE/G/ BE | FA F z :|  
X:1
L:1/8
M:2/4
K:F
"F" f4 |"C7" e4 |"Bb" d4 |"F" c4 |"Bb" Bc/d/ cB |"F" AB/c/ BA |"C7" GA/B/ AG |1"F" FF Ac :|2 
"F" F2 z2 |:"F" C>F AF |"C7" E>G Bc |"Bb" dc"C7" BG |"F" dc AF | C>F AF |"C7" E>G Bc | 
"Bb" dc"C7" BG |"F" FF F z ::"F" cF/A/ cF |"C7" d/c/B/G/ E2 | BE/G/ BE |"F" d/c/A/F/ C2 | 
 cF/A/ cF |"C7" d/c/B/G/ E2 | BE/G/ BE |"F" FA F z :|  