Produce a compatible series of chord shifts that synergize with the given musical composition.
ef/e/ de/d/ | cE G>c | BD F>A | GC E2 | ef/e/ de/d/ | cE G>c | 
 BD F>B | cc/B/ c z :: GB/d/ g>f | ee/g/ ce | dd/f/ Bd | ce/a/ g2 | 
 GB/d/ g>f | ee/g/ ce | dd/f/ Bd | ce c"_>Teil A" z :: Gf e>d | cc/E/ G>c | 
 BB/D/ F>B | cc/E/ G2 | Gf e>d | cc/E/ G>c | BB/D/ FB | ce c z :|  
X:1
L:1/8
M:2/4
K:C
"C" ef/e/"G7" de/d/ |"C" cE G>c |"G7" BD F>A |"C" GC E2 | ef/e/"G7" de/d/ |"C" cE G>c | 
"G7" BD F>B |"C" cc/B/ c z ::"G7" GB/d/ g>f |"C" ee/g/ ce |"G7" dd/f/ Bd |"C" ce/a/ g2 | 
"G7" GB/d/ g>f |"C" ee/g/ ce |"G7" dd/f/ Bd |"C" ce c"_>Teil A" z ::"G7" Gf e>d |"C" cc/E/ G>c | 
"G7" BB/D/ F>B |"C" cc/E/ G2 |"G7" Gf e>d |"C" cc/E/ G>c |"G7" BB/D/ FB |"C" ce c z :|  