Produce a compatible series of chord shifts that synergize with the given musical composition.
"^A" | EG | B4 Bc | B2 E2 FG | A4{E} AB |1 A4 || FG | A4 AB | A2 E2 FG | AB AG ED | 
 E4 :|2 c6 || e3 A Ac | B2 E2 FG | AB AF ED | E4 |]"^B" |: DC | 
 B,D D2 GB | d4 DB, | CE E2 Ac | e6 |1 DF FA Ad | d6 | DF AB cd | c2 B2 :|2 
 d2 fe dc | c2 A2 DF | A3 G BA | G4 |]  
X:1
L:1/8
M:3/4
K:Emin
"^A" | EG |"Em" B4 Bc | B2 E2 FG |"Am" A4{E} AB |1 A4 || FG |"Am" A4 AB | A2 E2 FG |"D" AB AG ED | 
"Em" E4 :|2 c6 ||"Am" e3 A Ac |"Em" B2 E2 FG |"D" AB AF ED |"Em" E4 |]"^B" |:"D7" DC | 
"G" B,D D2 GB | d4 DB, |"Am" CE E2 Ac | e6 |1"D" DF FA Ad | d6 | DF AB cd |"G" c2 B2 :|2 
"D" d2 fe dc |"Am" c2 A2 DF |"D" A3 G BA |"G" G4 |]  