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A recent measurement of double peak QPOs frequencies in Sgr A* is consistentwith the 3:2 ratio. The same ratio is firmly established by previousobservations in all double peak kHz QPOs in microquasars and theoreticallyexplained by orbital epicyclic resonances excited in nearly Keplerian accretionflow in black hole's strong gravity. If confirmed, the 3:2 ratio of double peakQPOs in Sgr A$^*$ will be of a fundamental importance for the black holeaccretion theory, by providing another clear argument that the accretion diskoscillations are indeed governed by non-linear, strong-gravity physics.Comment: 5 pages, 3 tables and 4 figures (2x2); submitted to A&

A possible 3:2 orbital epicyclic resonance in QPO frequencies of Sgr A*