Construct a harmonic backdrop to enhance the provided melody.
[K:Amin]"^Kerenski   [Am5d (Karapyet)" EA AA | ^G2 E2 | BB BB | c>B A2 | EA AA | 
 ^G2 E2 | ed cB | c>B A2 || E{Ac}e ee | f2 d2 | df ff | e>d c2 | Ee ee | 
 d>c B2 | ed cB | A2 A2 |][M:2/4][K:Dmin]"^Kerenski   [Dm5d (Karapyet)" Ad dd | 
 ^c2 A2 | ee ee | f>e d2 | Ad dd | ^c2 A2 | ag fe | f>e d2 || A{df}a aa | 
 b2 g2 | gb bb | a>g f2 | Aa aa | g>f e2 | ag fe | d2 d2 |] 
[M:2/4][K:Amin]"^Karapyet (Kerensky)" EA- AA | ^G>F E2 | EB- BB | c>B A2 | EA- AA | 
 ^G>F E2 | ed cB | A4 |]: Ae- ee | f>e d2 | df- ff | e>c e2 | ce- ee | 
 d>c B2 | ed cB | A4 :|[K:A] B z d z | c3 A | Bc de | c>B A2 | B z d z | 
 c3 A | ed FG | A4 |]: df- fa- | ae- ec | ed Bd | fe c2 | df- fa- | 
 ae- ec | ed FG | A4 :|  
X:1
L:1/8
M:2/4
K:C
[K:Amin]"^Kerenski   [Am5d (Karapyet)""Am" EA AA |"E7" ^G2 E2 | BB BB |"Am" c>B A2 |"Am" EA AA | 
"E7" ^G2 E2 | ed cB |"Am" c>B A2 ||"Am" E{Ac}e ee |"Dm" f2 d2 |"G7" df ff |"C" e>d c2 |"Am" Ee ee | 
"Dm" d>c B2 |"E7" ed cB |"Am" A2 A2 |][M:2/4][K:Dmin]"^Kerenski   [Dm5d (Karapyet)""Dm" Ad dd | 
"A7" ^c2 A2 | ee ee |"Dm" f>e d2 |"Dm" Ad dd |"A7" ^c2 A2 | ag fe |"Dm" f>e d2 ||"Dm" A{df}a aa | 
"Gm" b2 g2 |"C7" gb bb |"F" a>g f2 |"Dm" Aa aa |"Gm" g>f e2 |"A7" ag fe |"Dm" d2 d2 |] 
[M:2/4][K:Amin]"^Karapyet (Kerensky)""Am" EA- AA |"E7" ^G>F E2 | EB- BB |"Am" c>B A2 |"Am" EA- AA | 
"E7" ^G>F E2 | ed cB |"Am" A4 |]:"Am" Ae- ee |"Dm" f>e d2 |"G7" df- ff |"C" e>c e2 |"Am" ce- ee | 
"E7" d>c B2 | ed cB |"Am" A4 :|[K:A]"E7" B z d z |"A" c3 A |"E7" Bc de |"A" c>B A2 |"E7" B z d z | 
"A" c3 A |"E7" ed FG |"A" A4 |]:"D" df- fa- |"A" ae- ec |"E7" ed Bd |"A" fe c2 |"D" df- fa- | 
"A" ae- ec |"E7" ed FG |"A" A4 :|  