Develop harmonious chord sequences that enhance the given musical composition.
|: ABcd ef=ge | a=gfe f3 e | dcBA BcdB |1,3 ABcd e^d e2 :|2,4 AEFG A2 z2 :: 
 (ga)ae (ga)ae | dcBd c3 A | (ga)ae dcBd | c3 A BAGA | (ga)ae (ga)ae | 
 dcde f3 e | dcBA BcdB | AEFG A2 z2 :: EAGA BAGA | BAGA c3 A | dcBA BcdB |1,3 
 AGAB cd e2 :|2,4 AEFG A2 z2 :|"^A Coda" .A2 .E2 .A2 |]  
X:1
L:1/8
M:4/4
K:A
|:"A" ABcd ef=ge |"D" a=gfe f3 e |"E7" dcBA BcdB |1,3"A" ABcd e^d e2 :|2,4"A" AEFG A2 z2 :: 
"A" (ga)ae (ga)ae |"E7" dcBd"A" c3 A | (ga)ae"E7" dcBd |"A" c3 A BAGA |"A" (ga)ae (ga)ae | 
"D" dcde f3 e |"E7" dcBA BcdB |"A" AEFG A2 z2 ::"A" EAGA BAGA | BAGA c3 A |"E7" dcBA BcdB |1,3 
"A" AGAB cd e2 :|2,4"A" AEFG A2 z2 :|"^A Coda" .A2 .E2 .A2 |]  