Meson PVV interactions are determined by quark loops

We show that all abnormal parity three-body meson interactions can be adequ ately described by quark loops, evaluated at zero external momentum, with c ouplings determined by U(N-f) symmetry. We focus primarily on radiative mes on decays which involve one pseudoscalar. The agreement with experiment for nonrare decays is surprisingly good and requires very few parameters, name ly the coupling constants g(pi qq) and g(pqq) and some mixing angles. This agreement extends to some three-body decays that are dominated by pion pair s in a P-wave state.