  We present the spectrum of eigenfrequencies of axisymmetric acoustic-inertial
oscillations of thin accretion disks for a Schwarzschild black hole modeled
with a pseudo-potential. There are nine discrete frequencies, corresponding to
trapped modes. Eigenmodes with nine or more radial nodes in the inner disk
belong to the continuum, whose frequency range starts somewhat below the
maximum value of the radial epicyclic frequency. The results are derived under
the assumption that the oscillatory motion is parallel to the midplane of the
disk.
