Develop harmonious chord sequences that enhance the given music composition.
c>=B | d2 c4 GA | (c=B) _B4 B>c | e4- ed G^G | A4- A z c>=B | d2 c4 GA | 
 (c=B) _B4 B>c | e3 d B3 E | F4- F z || A>A | A2 d2 f3 d | f2 e4 A>A | 
 B2 A2 E3 F | D4- D z A>A | A2 d2 f3 d | f2 e2- e2 AA | B2 A2 e3 f | 
 (d4 !fermata!e2) || c>=B | d2 c4 G>A | (c=B) _B4 B>c | e4- ed G^G | 
 A4- A z c>=B | d2 c4 GA | (c=B) _B4 B>c | e3 d B3 E | F4- F z |]  
X:1
L:1/8
Q:1/4=90
M:4/4
K:F
 c>=B |"F" d2 c4 GA |"C7" (c=B) _B4 B>c | e4- ed G^G |"F" A4- A z c>=B | d2 c4 GA | 
"Gm" (c=B) _B4 B>c |"C7" e3 d B3 E |"F" F4- F z || A>A |"Dm" A2 d2 f3 d |"A7" f2 e4 A>A | 
 B2 A2 E3 F |"Dm" D4- D z A>A | A2 d2 f3 d |"C7" f2 e2-"Dm" e2 AA |"A7" B2 A2 e3 f | 
"Dm" (d4"C7" !fermata!e2) || c>=B |"F" d2 c4 G>A |"C7" (c=B) _B4 B>c | e4- ed G^G | 
"F" A4- A z c>=B | d2 c4 GA |"Gm" (c=B) _B4 B>c |"C7" e3 d B3 E |"F" F4- F z |]  