The MI transition among the low-lying vector and pseudoscalar mesons is inv
estigated in a relativistic potential model of independent quarks. A static
calculation of the partial decay widths of several possible MI transitions
is performed within the conventional picture of photon emission by a confi
ned quark and/or antiquark. The model parameters are determined from a fit
to the mass splittings of ground-state mesons in the strange, charm and bot
tom flavour sectors. The model accounts well for the observed decay widths
of light mesons and predict decay rates of heavy mesons which are comparabl
e with those of other model calculations.