Formulate a coherent chord sequence that corresponds to the given music composition.
DEFA ded=c | A2 GE =CEGE | DEFA ded=c |1 A2 GE EDCE :|2 A2 GE FD D2 |: 
 f2 fg fedf | e2 ef edcB | ABcd edcd | ea a2 eaag | f2 fg fedf | e2 ef edcB | 
 ABcd e2 dc | A2 GE FD D2 :: df f2 dfaf | ce e2 ce (3gfe | dffe defa | geag fdde | 
 f2 de fdAF | G2 BG EGFE | D2 FA ded=c |1 A2 GE FD D2 :|2 A2 GE ED=CE |]  
X:1
L:1/8
Q:1/8=200
M:2/2
K:D
"D" DEFA ded=c |"C" A2 GE =CEGE |"D" DEFA ded=c |1"C" A2 GE"D" EDCE :|2"C" A2 GE"D" FD D2 |: 
"D" f2 fg fedf |"A" e2 ef edcB | ABcd edcd | ea a2 eaag |"D" f2 fg fedf |"A" e2 ef edcB | 
 ABcd e2 dc | A2 GE"D" FD D2 ::"D" df f2 dfaf |"A" ce e2 ce (3gfe |"D" dffe defa |"A" geag fdde | 
"D" f2 de fdAF |"G" G2 BG EGFE |"D" D2 FA ded=c |1"C" A2 GE"D" FD D2 :|2"C" A2 GE ED=CE |]  