Construct a compatible series of chords to accompany the provided musical composition.
{B} c2{^d} e2"^tr" =f3 c/B/ | c>de>^f g>a a2 | G2 (3gfe"^tr" d3 c | c>B B>A A2 a2 :: 
{^g} a2 A>A BA E2 |{^g} a2 A>A B>A E2 | (3ABc (3ABc"^tr" d3 c | c>B (3E^F^G A2 :|  
X:1
L:1/8
Q:1/4=112
M:2/4
K:C
{B}"C" c2{^d} e2"^tr" =f3 c/B/ | c>de>^f g>a a2 |"G" G2 (3gfe"^tr" d3 c |"E7" c>B B>A"A" A2 a2 :: 
{^g} a2 A>A BA E2 |{^g} a2 A>A B>A E2 | (3ABc (3ABc"^tr" d3 c | c>B (3E^F^G A2 :|  