Compose a chordal backing that synchronizes seamlessly with the existing melody.
K:G] d2 A/d/ | f2 d/f/ | a a/a/ a/a/ | a z z |: d e3/2 d/ | F2 A | d e3/2 d/ | G2 B | 
 .g !>!a3/2 g/ | f2 e | e/e/ e d | B3 | d e3/2 d/ | F2 A | d e3/2 d/ | G2 B | 
 .g !>!a3/2 g/ | f2 e | ^c2 d |1 B z B :|2 G z d/e/ |:[K:D] f z g | f z a | 
 g2 f | e2 e/f/ | g z a | g z g | f2 e | d2 d/e/ | f z g | f z a | g2 f | g3 | 
 B d3/2 B/ | A2 f | g/g/ g c |1 d z d/e/ :|2 d z B/B/ ||[K:C] B c ^c | 
 d2 e/f/ | g c e | d2 e/d/ | c a3/2 a/ | a2 d/c/ | B g3/2 g/ | g2 B/B/ | B c ^c | 
 d2 e/f/ | .g .f .e |"^C0" ^d2 e | a3 | b3 | a/a/ a a | g z z |  
X:1
L:1/4
M:3/4
K:none
[K:G]"D7" d2 A/d/ | f2 d/f/ | a a/a/ a/a/ | a z z |:"D7" d e3/2 d/ | F2 A | d e3/2 d/ |"G" G2 B | 
 .g !>!a3/2 g/ |"C" f2 e |"D7" e/e/ e d |"G" B3 |"D7" d e3/2 d/ | F2 A | d e3/2 d/ |"G" G2 B | 
 .g !>!a3/2 g/ |"C" f2 e |"D7" ^c2 d |1"G" B z B :|2"G" G z d/e/ |:[K:D]"D" f z g | f z a | 
"A7" g2 f | e2 e/f/ | g z a | g z g |"D" f2 e | d2 d/e/ | f z g | f z a |"Em" g2 f | g3 | 
"G" B d3/2 B/ |"D/A" A2 f |"A7" g/g/ g c |1"D" d z d/e/ :|2"D" d z B/B/ ||[K:C]"G" B c ^c | 
 d2 e/f/ |"C" g c e |"G" d2 e/d/ |"Am" c a3/2 a/ |"D7" a2 d/c/ |"G" B g3/2 g/ | g2 B/B/ | B c ^c | 
 d2 e/f/ |"C" .g .f .e |"^C0" ^d2"C" e |"Am/C" a3 |"G/D" b3 |"D7" a/a/ a a |"G" g z z |]  