  We propose to use as a mathematical tool to study the mass square of the
etaprime meson an infinitely heavy supplementary quark flavor Q. This is
understood in the framework of QCD with one light quark flavor (or n_fl light
flavors) and the gauge group SU3 colour (or SUN colour). The full system thus
consists of n_fl + 1 flavors, including the infinitely heavy one. The purpose
of this note is to show how the heavy flavor can be made to represent the
anomalies of the subtheory describing the remnant physical degrees of freedom.
In the large N_c limit the mass square of etaprime tends to a finite limit. The
essential deviations from (semi) perturbative derivations are related to simple
properties of the 'heavy' flavor.
