Compose chord progressions that complement the given musical piece.
(3(gab) |: c'2e2 g2c2 | f2fe d4 | b2d2 f2B2 | c2ed c4 | c'2e2 g2c2 | f2fe d4 | 
 gaba gfed | c2eg c'2 z2 :|  
X:1
L:1/16
M:2/4
K:C
 (3(gab) |:"C" c'2e2 g2c2 |"G7" f2fe d4 | b2d2 f2B2 |"C" c2ed c4 | c'2e2 g2c2 |"G7" f2fe d4 | 
 gaba gfed |"C" c2eg c'2 z2 :|  