Formulate chord sequences to heighten the harmonic quality of the specified musical portion.
E=DE F2 D | E3 c2 z | cBF G2 B | A3- A2 z | E=DE F2 D | E3 c2 z | BcB F2 B | 
 B3- B2 z | B=AB c2 B | A3 E2 z | FGA c2 B | A3- A2 z | AGA (AG)A | 
 c3 A2 z | EFA c2 B | A3- A2 z |]  
X:1
L:1/8
Q:1/4=120
M:6/8
K:Ab
"Ab" E=DE F2 D | E3 c2 z |"Eb7" cBF G2 B |"Ab" A3- A2 z | E=DE F2 D | E3 c2 z |"Bb7" BcB F2 B | 
"Eb" B3-"Eb7" B2 z | B=AB c2 B |"Ab" A3 E2 z |"Fm" FGA"C7" c2 B |"Fm" A3- A2 z |"Ddim" AGA (AG)A | 
"Ab/Eb" c3 A2 z |"Fm" EFA"Ab/Eb" c2"Eb7" B |"Ab" A3- A2 z |]  