Develop well-balanced harmonic arrangements to enrich the provided music piece.
| z2 | Bc^de ^fgfe | ^d2 dB e4 | ^f2 f2 agfe | ^d2 dB e4 | Bc^de ^fgfe | 
 ^d2 dB e4 | ^d2 d2 cBcA | B6 :|[K:G] |: [df]2 | ga b4 b2 | abaf d4 | 
 defg abc'a | b2 bc' bagf | ef g4 g2 | fgf^d B4 | Bc^de fgfd | e6 :| |: 
 ^dc | B2 ^d2 B2 d2 | e2 e2 agfe | ^d2 d2 edeg | f2 f2 b4 | B2 ^d2 B2 d2 | 
 e2 e2 agfe | ^d2 d2 cBcA | B6 :|  
X:1
L:1/8
M:2/2
K:none
"A" | z2 |"B" Bc^de ^fgfe | ^d2 dB"Em" e4 |"B" ^f2 f2 agfe | ^d2 dB"Em" e4 |"B" Bc^de ^fgfe | 
 ^d2 dB"Em" e4 |"B" ^d2 d2"Am" cBcA |"B" B6 :|[K:G]"B" |:"D" [df]2 |"G" ga b4 b2 |"D" abaf d4 | 
"D7" defg abc'a |"G" b2 bc'"B" bagf |"Em" ef g4 g2 |"B" fgf^d B4 | Bc^de fgfd |"Em" e6 :|"C" |: 
 ^dc |"B" B2 ^d2 B2 d2 |"Em" e2 e2 agfe |"B" ^d2 d2"Em" edeg |"B" f2 f2 b4 |"B" B2 ^d2 B2 d2 | 
"Em" e2 e2 agfe |"B" ^d2 d2"Am" cBcA |"B" B6 :|  