  In [1] the horizon fluffs proposal is put forward to identify microstates of
generic non-extremal three-dimensional Banados-Teitelboim-Zanelli (BTZ) black
holes. The proposal is that black hole microstates, which were dubbed as
horizon fluffs, are states labelled by the conserved charges associated with
non-trivial diffeomorphisms on the near horizon geometry and these states are
not in the coadjoint orbits of the asymptotic Virasoro algebra at the
Brown-Henneaux central charge, associated with the BTZ black holes. It is also
known that AdS3 Einstein gravity has more general black hole solutions than the
BTZ family which are generically described by two periodic, but otherwise
arbitrary, holomorphic and anti-holomorphic functions. We show that these
general AdS3 black holes which are typically conformal descendants of the BTZ
black holes and are characterised by the associated Virasoro coadjoint orbits,
appear as coherent states in the asymptotic symmetry algebra corresponding to
the black hole family. We apply the horizon fluffs proposal to these generic
AdS3 black holes and identify the corresponding microstates. We then perform
microstate counting and compute the entropy. The entropy appears to be an orbit
invariant quantity, providing an important check for the horizon fluffs
proposal.
