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

Bases in coset conformal field theory from AGT correspondence and Macdonald polynomials at the roots of unity