Construct harmonious chord structures to elevate the given musical piece.
DC |: B,G,B,D GDGB | ed d2 dBGB |"^(C)" cBAG"^(D7)" FDEF |1,3 GBAG"^(D7)" FE :|2,4 
 GB"^(D)"AF"^(G)" G2 :: GA | [BE]3 [BE] [BE]2 ef | gfeg"^(Bm)" fB B2 | 
 eBBe B[eB]ef |"^(Em)" gB{c}BA"^(D)" BAGA | BEBE B2 ef | gfeg"^(Bm)" fB B2 | 
 efg{f}e dBGB |"^(D7)" cBAF G2 :|  
X:1
L:1/8
Q:1/2=110
M:2/2
K:G
 DC |:"G" B,G,B,D GDGB | ed d2 dBGB |"^(C)""D" cBAG"^(D7)""D" FDEF |1,3"G" GBAG"^(D7)""D" FE :|2,4 
"G" GB"^(D)""G"AF"^(G)""D" G2 :: GA |"Em" [BE]3 [BE] [BE]2 ef |"Em" gfeg"^(Bm)""Em" fB B2 | 
"Em" eBBe B[eB]ef |"^(Em)""Am" gB{c}BA"^(D)""B" BAGA |"Em" BEBE B2 ef |"Em" gfeg"^(Bm)""Em" fB B2 | 
"C" efg{f}e"G" dBGB |"^(D7)""D" cBAF"G" G2 :|  