Formulate chord sequences to heighten the harmonic quality of the specified musical portion.
|: dc | B2>b2 Bdfd | Bege Bdfd | B2>b2 Bdfd | c2dB A2GF | B2>b2 Bdfd | 
 Bege Bdfd | ceg2 Bdf2 | .A2.A2 B2 :: de | f6 g2 | f6 x g2 | 
 f2g2 f2g2 | d6 g2 | f2e2 d2c2 | B2 Bc B2B2 | c2cB c2d2 | B6 :|  
X:1
L:1/16
M:2/4
K:Bb
|: dc |"Bb" B2>b2 Bdfd |"Eb" Bege"Bb" Bdfd |"Bb" B2>b2 Bdfd |"Cm" c2dB"F" A2GF |"Bb" B2>b2 Bdfd | 
"Eb" Bege"Bb" Bdfd |"Cm" ceg2"Bb" Bdf2 |"F7" .A2.A2"Bb" B2 :: de |"Bb" f6 g2 | f6"F7" x g2 | 
"Bb" f2g2 f2g2 | d6 g2 |"Dm" f2e2"D" d2c2 |"Gm" B2 Bc B2B2 |"Cm" c2cB"F7" c2d2 |"Bb" B6 :|  