  This paper is devoted to an elementary new construction of $1$-singular
Gelfand-Tsetlin modules using complex geometry. We introduce a universal ring
$\mathcal D_o$ together with the vector space $\mathcal S=\mathcal S(\mathcal
D_o)$ with basis $\mathcal B_o = \mathcal B(\mathcal D_o)$ formed from some
local distributions such that $\mathcal S$ is a natural $\mathcal D_o$-module.
For any homomorphism of rings $\mathcal U(\mathfrak{h}) \to \mathcal D_o$,
where $\mathfrak{h}$ is a Lie algebra, it follows that $\mathcal S$ is also an
$\mathfrak{h}$-module. We observe that the homomorphism of rings constructed in
[FO] is a homomorphism of type $\mathcal U(\mathfrak{gl}_n(\mathbb C)) \to
\mathcal D_o$. Using this observation we obtain a construction of the universal
$1$-singular Gelfand-Tsetlin $\mathfrak{gl}_n(\mathbb C)$-module from [FRG].
