Upper graph: dependence between amplitude and accretion rate for a stellar-mass black hole (M = 10 M_⊙). Middle graph: dependence between amplitude and accretion rate for an intermediate-mass black hole (M = 3 × 10⁴M_⊙). Lower graph: dependence between amplitude and accretion rate for stellar-mass black hole (M = 10⁸M_⊙). The graph was prepared for a range of μ. We can see simple unambiguous dependence for different μ-models.