Construct harmonious chord structures to elevate the given musical piece.
"^A" ee e/f/e | gg g/a/g | ad d/e/d | gc c/d/c | ee e/f/e | gg g/a/g | ad d/e/d | 
 cc c z :|[K:G]"^B" (B/d/).g gg | (c/e/).a aa | c'f/f/ ba | af/g/ !>!d2 | 
 (B/d/).g gg | (c/e/).a aa | c'f/f/ ba | g2"_>Teil A" !>!=f2 |:[K:C]"^C" ca ca | 
 ag g/^f/g | c'e c'e | af f/e/f | ca ca | ag g/^f/g | c'e c'e | ff f"_Fine" z :| 
[K:A]"^D" a/a/a a/a/a | a/a/a c'2 | c'b b/^a/b | ba a/g/a | a/a/a a/a/a | a/a/a c'2 | 
 c'b b/^a/b | .a2"_>Teil C" !>!c2 |]  
X:1
L:1/8
M:2/4
K:C
"^A""C" ee e/f/e | gg g/a/g |"G7" ad d/e/d |"C" gc c/d/c | ee e/f/e | gg g/a/g |"G7" ad d/e/d | 
"C" cc c z :|[K:G]"^B""G" (B/d/).g gg |"Am" (c/e/).a aa |"D7" c'f/f/ ba |"G" af/g/ !>!d2 | 
 (B/d/).g gg |"Am" (c/e/).a aa |"D7" c'f/f/ ba |"G" g2"_>Teil A""G7" !>!=f2 |:[K:C]"^C""F" ca ca | 
"C7" ag g/^f/g | c'e c'e |"F" af f/e/f | ca ca |"C7" ag g/^f/g | c'e c'e |"F" ff f"_Fine" z :| 
[K:A]"^D""A" a/a/a a/a/a | a/a/a c'2 |"E7" c'b b/^a/b |"A" ba a/g/a | a/a/a a/a/a | a/a/a c'2 | 
"E7" c'b b/^a/b |"A" .a2"_>Teil C" !>!c2 |]  