Craft a fitting chord progression to merge seamlessly with the given musical theme.
e/f/ |: gg/g/ gg | c'b dd/e/ | ff/f/ ff | ag cc/d/ | ee/e/ ^de | gd fd/c/ | 
 Ba gb/b/ |1 c'g/e/ ce/f/ :|2 c'g/e/ cd |][K:G] Bd/g/ db | ag f2 | fe d2 | ed BB | 
 Bd/g/ db | ag f2 | fe de/f/ |1 gg gd :|2 gg gg |:[K:C] ge'/d'/ c'b/a/ | ge/e/ eg | 
 fd/d/ df | eg/g/ gg | ge'/d'/ c'b/a/ | ge/e/ eg | fd/d/ db |1 c'c' c'g :|2 
 c'c' c' z |:[K:G] bb/b/ ba | gf e^d | ef ga | bb/b/ .b2 | g/f/g a/g/a | 
 bb/g/ d2 | aa/f/ d2 | gg/d/ B2 | g/f/g a/g/a | b/a/b c'/b/c' | 
 d'd'/c'/ df | gg g z :|  
X:1
L:1/8
M:2/4
K:C
 e/f/ |:"C" gg/g/ gg |"G7" c'b dd/e/ | ff/f/ ff |"C" ag cc/d/ | ee/e/ ^de |"G7" gd fd/c/ | 
 Ba gb/b/ |1"C" c'g/e/ ce/f/ :|2"C" c'g/e/ cd |][K:G]"G" Bd/g/ db |"D7" ag f2 | fe d2 |"G" ed BB | 
 Bd/g/ db |"D7" ag f2 | fe de/f/ |1"G" gg gd :|2"G" gg gg |:[K:C]"C" ge'/d'/ c'b/a/ | ge/e/ eg | 
"G7" fd/d/ df |"C" eg/g/ gg | ge'/d'/ c'b/a/ | ge/e/ eg |"G7" fd/d/ db |1"C" c'c' c'g :|2 
"C" c'c' c' z |:[K:G]"Em" bb/b/ ba | gf e^d |"C" ef ga |"B7" bb/b/ .b2 |"Em" g/f/g"D7" a/g/a | 
"G" bb/g/ d2 |"D7" aa/f/ d2 |"G" gg/d/ B2 |"Em" g/f/g"D7" a/g/a |"G" b/a/b"C" c'/b/c' | 
"D7" d'd'/c'/ df |"G" gg g z :|  