Produce chord progressions to blend with the given tune.
ag gc ec | Bg fg B2 | ag gB fB | cg ea c2 | ag gc ec | Bg fa B2 | ag gB fB | 
 c2 z2 z2 :: BG FG B2 | cG EG c2 | Bg gB fG | cg gc ec | BG FG B2 | 
 cG EG c2 | Bg gB fB | c2 z2 z2 :|  
X:1
L:1/8
M:3/4
K:C
"C" ag gc ec |"G7" Bg fg B2 | ag gB fB |"C" cg ea c2 | ag gc ec |"G7" Bg fa B2 | ag gB fB | 
"C" c2 z2 z2 ::"G7" BG FG B2 |"C" cG EG c2 |"G7" Bg gB fG |"C" cg gc ec |"G7" BG FG B2 | 
"C" cG EG c2 |"G7" Bg gB fB |"C" c2 z2 z2 :|  