Construct a harmonic accompaniment for the provided musical piece.
DG | B2 BA GBed | B2 BA GBdB | edcB cBAG |1,3 FGAB A2 :|2,4 FDEF G4 :: 
 e2 f2 g2 e2 | e3 f gfed | edcB cBAG |1,3 FGAB A4 :|2,4 FDEF G4 :|  
X:1
L:1/8
M:4/4
K:G
 DG |"G" B2 BA GBed | B2 BA GBdB |"C" edcB cBAG |1,3"Am" FGAB"D" A2 :|2,4"D" FDEF"G" G4 :: 
"B7" e2 f2"Em" g2 e2 | e3 f"C" gfed | edcB"Am" cBAG |1,3"D" FGAB A4 :|2,4"D" FDEF"G" G4 :|  