  In work arXiv:1204.2788, a surface embedded in flat $R^3$ is associated to
any three hermitian matrices. We study this emergent surface when the matrices
are large, by constructing coherent states corresponding to points in the
emergent geometry. We find the original matrices determine not only shape of
the emergent surface, but also a unique Poisson structure. We prove that
commutators of matrix operators correspond to Poisson brackets. Through our
construction, we can realize arbitrary noncommutative membranes: for example,
we examine a round sphere with a non-spherically symmetric Poisson structure.
We also give a natural construction for a noncommutative torus embedded in
$R^3$. Finally, we make remarks about area and find matrix equations for
minimal area surfaces.
