Craft a musical piece that follows the outlined chord structure.
'C', 'F', 'G', 'C', 'G', 'F', 'G', 'G', 'C', 'D', 'G', 'C', 'G', 'F', 'G', 'G', 'F', 'G', 'C'  
X:1
L:1/8
M:6/8
K:C
"^Sequence A2 B2 C2""^A (prepare to gallop)""C" G |:"F" (A3 A2) A |"G" (B3 B2) B |1"C" c3 c dc | 
"G" B3 B2 B :|2"F" c2 cc BA |[M:3/8]"G" d2 z |:[M:6/8]"^B (gallop)""G" dBG d2 d | dBG d2 G | 
"C" A2 A"D" d2 d |1 B3"G" G3 :|2 G3 G3 |:[M:2/4]"^C (slow polka)""C" ec c/B/c/d/ |1"G" cB B>c | 
"F" BA A>B |"G" AG G2 ||2"G" cB B>G |"F" AA"G" BB |"C" c2 c G ||  