  The calculations and analysis of a variance have shown, that masses of mesons
up to 1000 MeV strongly correlate with a model spectrum of potential wells at
mass of harmonic up-quark 105.6 MeV. It is shown, that probability of casual
correspondence of the meson and model spectrums is less than 1 ppm. The
harmonic quark model is applied to L=0 hadrons for the analysis of them
structures and detection of them filled quark shells. The possible quark
structures of all mesons up to 1000 MeV are given. The completely neutral
simple boson configurations are found for a threshold a proton-antiproton and
the total mass of neutral pion and kaon. Mass relations are fulfilled with
precision near 0.01%. It is supposed, that new relations is connected with
Higgs mechanism of mass formation. The final precision of calculated masses of
harmonic quarks is estimated as 0.005%.
