  We assess the prospect of using ring seismology to probe the interiors of the
ice giants Uranus and Neptune. We do this by calculating normal mode spectra
for different interior models of Uranus and Neptune using the stellar
oscillation code GYRE. These spectra provide predictions of where in these
planets' ring systems the effects of interior oscillations might be detected.
We find that f-mode resonances with azimuthal order $m=2$ or $7 \leq m \leq 19$
fall among the inner rings (6, 5, 4, $\alpha$, and $\beta$) of Uranus, while
f-mode resonances with $2 \leq m \leq 12$ fall in the tenuous $\zeta$ ring
region. In addition, f-mode resonances with $m=2$ or $6 \leq m \leq 13$ may
give azimuthal structure to Neptune's tenuous Galle ring. We also find that
g-mode resonances may fall in the middle to outer rings of these planets.
Although an orbiter is most likely required to confirm the association between
any waves in the rings and planetary normal modes, the diversity of normal mode
spectra implies that identification of just one or two modes in the rings of
Uranus or Neptune would eliminate a variety of interior models, and thus aid in
the interpretation of Voyager observations and future spacecraft measurements.
