Formulate chord sequences to heighten the harmonic quality of the specified musical portion.
|: E2 | A2 (3cBA e>A (3cBA | e>A a>A g>A f>A | e>A (3cBA e>A (3cBA | B>E d>E c>E B>E | 
 A2 (3cBA e>A (3cBA | e>A a>A g>A f>A | e>f e>c e>a e>c | B>A B<c A2 :: (3AGF | 
 E2 (3GFE B>E (3GFE | B>E d>E c>E B>E | A2 (3cBA e>A (3cBA | e>A a>A g>A f>A | 
 e>f e>c a>g a>f | e>f e>c a>g a>f | e>c a>g f>e d>c | B>A B<c A2 :|  
X:1
L:1/8
M:4/4
K:A
|: E2 |"A" A2 (3cBA e>A (3cBA | e>A a>A g>A f>A | e>A (3cBA e>A (3cBA |"E7" B>E d>E c>E B>E | 
"A" A2 (3cBA e>A (3cBA | e>A a>A g>A f>A | e>f e>c e>a e>c |"E7" B>A B<c"A" A2 :: (3AGF | 
"E7" E2 (3GFE B>E (3GFE | B>E d>E c>E B>E |"A" A2 (3cBA e>A (3cBA | e>A a>A g>A f>A | 
"A" e>f e>c"D" a>g a>f |"A" e>f e>c"D" a>g a>f |"A" e>c a>g"D" f>e d>c |"E7" B>A B<c"A" A2 :|  