  We extend a known multi-quark three-flavor Lagrangian of the
Nambu-Jona-Lasinio type, which includes a set of effective interactions
proportional to the current quark masses, to include the multi-quark
interactions of vector and axial-vector types. It is shown that the mass
spectrum of the four low-lying meson nonets are in agreement with current
phenomenological expectations. The role of the new interactions is analyzed in
detail.
