Formulate chord sequences to heighten the harmonic quality of the specified musical portion.
|: ef/e/ ce | fe Bc | A>B c/B/A | ec B2 | ef/e/ ce | fe Bc | A>B c/B/A | 
 FA E2 :: F>B AF | cB A2 | ef/e/ ce | ag f2 | ef/e/ ce | fe Bc | 
 A>B c/B/A | FA E2 :|  
X:1
L:1/8
M:2/4
K:A
|:"A" ef/e/ ce |"D" fe Bc |"A" A>B c/B/A | ec"E" B2 |"A" ef/e/ ce |"D" fe Bc | A>B c/B/A | 
"D" FA"E" E2 ::"Bm" F>B AF |"A" cB A2 | ef/e/ ce |"D" ag f2 |"A" ef/e/ ce |"D" fe Bc | 
"A" A>B c/B/A |"D" FA"E" E2 :|  