that would have been better off staying on the festival circuit 
(ROOT (S (NP (DT that)) (VP (MD would) (VP (VB have) (VP (VBN been) (ADVP (JJR better) (RP off)) (S (VP (VBG staying) (PP (IN on) (NP (DT the) (NN festival) (NN circuit))))))))))
(ROOT (S (NP (DT )) (VP (MD ) (VP (VB ) (VP (VBN ) (ADVP (JJR ) (RP )) (S (VP (VBG ) (PP (IN ) (NP (DT ) (NN ) (NN ))))))))))