  The present material covers the features of large scale ring dynamics in
perturbed flows that were not addressed in part 1 (astro-ph/1606.00759); this
includes an extensive coverage of all kinds of ring modes dynamics (except
density waves which have been covered in part 1), the origin of ring
eccentricities and mode amplitudes, and the issue of ring/gap confinement. This
still leaves aside a number of important dynamical issues relating to the ring
small scale structure, most notably the dynamics of self-gravitational wakes,
of local viscous overstabilities and of ballistic transport processes.
  As this material is designed to be self-contained, there is some 30% overlap
with part 1. This work constitutes a preprint of Chapter 11 of the forthcoming
Cambridge University book on rings (Planetary Ring Systems, Matt Tiscareno and
Carl Murray, eds).
