Formulate chord combinations to increase the harmonic complexity of the specified musical excerpt.
AFA BGB | AFA GFE | FDF GEG | FAG FED | DB,D EB,E | 
 FB,F GB,G |1 A^CA BcB | A4- AA :|2 ^CDE FEB, | A,6 |: 
 DEB ^ceg | fa^g fed | A^ce Bcg | f6 | ag^c egb | 
 afd AFD | E^CA, B,FE | D6 :|  
X:1
L:1/8
M:6/8
K:F
"Dm" AFA"Gm" BGB |"Dm" AFA"C" GFE |"Dm/F" FDF"Gm" GEG |"F/A" FAG"Dm" FED |"Bb" DB,D"Bbdim" EB,E | 
"Bb" FB,F"Gm" GB,G |1"A7" A^CA"Bb" BcB |"A" A4- AA :|2"A7" ^CDE"Bb" FEB, |"A" A,6 |: 
"Edim" DEB"A7" ^ceg |"Dm" fa^g"F" fed |"A7" A^ce"Bbdim" Bcg |"Dm" f6 |"A7" ag^c"Gm6" egb | 
"Dm" afd"F/C" AFD |"A7" E^CA,"Bb" B,FE |"Dm" D6 :|  