Formulate diverse chord combinations to augment the harmonic richness of the given musical work.
|: DF AD | DC CC | A,C/C/ EG | FD D2 :: AF/A/ dc | BA FD | FE/F/ GC | 
 ED D2 ::[K:A] Ac eA | AG GG | EG/G/ Bd | cA A2 :: ec/e/ ag | fe cA | 
 cB/c/ dG | BA A2 :|  
X:1
L:1/8
M:2/4
K:D
|:"D" DF AD |"A7" DC CC | A,C/C/ EG |"D" FD D2 ::"D" AF/A/"G" dc |"D" BA FD |"Em" FE/F/"A7" GC | 
"D" ED D2 ::[K:A]"A" Ac eA |"E7" AG GG | EG/G/ Bd |"A" cA A2 ::"A" ec/e/"D" ag |"A" fe cA | 
"Bm" cB/c/"E7" dG |"A" BA A2 :|  