  The Ultra Quantum Crystal phases observed in quasi-one-dimensional conductors
of the Bechgaard salts family under magnetic field exhibit both Spin Density
Wave order and a Quantized Hall Effect. As a result, they also possess a
Magneto-Roton mode within the single particle gap, and the usual Goldstone
modes. The sign reversals of the Quantum Hall Effect have recently been
explained within the Quantized Nesting Model. I show here that the sign
reversed phases of the Ultra Quantum Crystal (the "Ribault Phases") have novel
properties compared to the majority sign phases. They exhibit at least two
Magneto-Roton modes, the energy of which, relative to the single particle gap,
vary linearly with the magnetic field, with opposite signs, in contrast to the
field dependence in the majority sign phases
