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The instanton size $\rho$ and inter-instanton distance $R$ are the mainparameters of Instanton Liquid Model (ILM) of the QCD vacuum. Various estimatesshow that $\rho\approx1/3$ fm and $R\approx1$ fm, and the corresponding packingparameter $\kappa=\rho^{4}/R^{4}\approx0.01$. The strength of the lightquark-instanton interaction is sizable and close to that of the gluon-instantonone since the dynamical light quark mass $M_{q}$ and dynamical gluon mass$M_{g}$ are given by $M_{q}\approx M_{g}\approx 360$MeV$\sim\kappa^{1/2}\rho^{-1}$. On the other hand, the strength of the heavyquark-instanton interaction is weak - the direct instanton contribution to theheavy quark mass $\Delta M_{Q}^{{\rm dir}}\approx70$ MeV$\sim\kappa\rho^{-1}.$The instantons are responsible for mutual interactions among colored particleswhich are crossing the field of the same instanton, like t'Hooft-likeinteractions of $N_{f}$ light quarks ($N_{f}$ is the light quark flavorsnumber). The light quark propagators in the instanton field have zero modes,which give dominant contributions. Within ILM we are able to derive the lightquarks determinants and the light quarks partition function. These toolsperfectly describe the light quark physics and its most important and basicphenomena - the spontaneous breaking of the chiral symmetry (SBChS) in details.These one allows us to find the properties of light and heavy quarksinteractions and get SBChS traces in light-heavy and heavy-heavy quarkssystems. So, we need to find heavy $Q\bar{Q}$ quarkonia spectra and their wavefunctions. Here we have interplay of two scales: short($\sim(M_{Q}v)^{-1}\leq0.15$ fm) perturbative QCD and large($\sim(M_{Q}v^{2})^{-1}\sim0.5$ fm) nonperturbative QCD scales, where $v$ isthe velocity in $Q\bar{Q}$. We calculate the heavy quarks correlators withperturbative corrections within ILM.

Gluons, light and heavy quarks and their interactions in the instanton vacuum