Devise a fitting chain of harmonic chords in line with the provided musical work.
(3(GAB) |: cE Gc ec | BD Gf f2 | BD Gf fB | cE Gc e2 | cE Gc ec | BD Gf f2 | 
 BD Gf fB |1 c4 (3(GAB) :|2 c4 (3(de^f) |:[K:G] gB dg bg | fA dc' c'2 | fA dc' c'f | 
 gB dg b2 | gB db bg | fA dc' c'2 | fA dc' c'f |1 g2 z2 (3(def) :|2 g2 z2 z2 |]  
X:1
L:1/8
M:3/4
K:C
 (3(GAB) |:"C" cE Gc ec |"G7" BD Gf f2 | BD Gf fB |"C" cE Gc e2 | cE Gc ec |"G7" BD Gf f2 | 
 BD Gf fB |1"C" c4 (3(GAB) :|2"C" c4 (3(de^f) |:[K:G]"G" gB dg bg |"D7" fA dc' c'2 | fA dc' c'f | 
"G" gB dg b2 | gB db bg |"D7" fA dc' c'2 | fA dc' c'f |1"G" g2 z2 (3(def) :|2"G" g2 z2 z2 |]  