  We present a theory of orbital magnetic dynamics for a chiral p-wave
superconductor with broken time-reversal symmetry. In contrast to the common
Landau-Lifshitz theory for spin ferromagnets, the case of orbital magnetism
cannot be described in terms of local magnetization density. Hence it is
impossible to define unambiguously the spontaneous magnetic moment: the latter
would depend on conditions of its experimental investigation.
  As an example of this we consider orbital magnetization waves and the domain
structure energy.
