  We continue our study of the AGT correspondence between instanton counting on
C^2/Z_p and Conformal field theories with the symmetry algebra A(r,p). In the
cases r=1, p=2 and r=2, p=2 this algebra specialized to: A(1,2)=H+sl(2)_1 and
A(2,2)=H+sl(2)_2+NSR.
  As the main tool we use a new construction of the algebra A(r,2) as the limit
of the toroidal gl(1) algebra for q,t tend to -1. We claim that the basis of
the representation of the algebra A(r,2) (or equivalently, of the space of the
local fields of the corresponding CFT) can be expressed through Macdonald
polynomials with the parameters q,t go to -1. The vertex operator which
naturally arises in this construction has factorized matrix elements in this
basis. We also argue that the singular vectors of the $\mathcal{N}=1$ Super
Virasoro algebra can be realized in terms of Macdonald polynomials for a
rectangular Young diagram and parameters q,t tend to -1.
