  In this paper we describe how to compute a Saito basis of a cusp, a plane
curve with only one Puiseux pair. Moreover, the 1-forms of the Saito basis that
we compute are characterized in terms of their divisorial orders associated to
the "cuspidal" divisor of the minimal reduction of singularities of the cusp.
We also introduce a new family of analytic invariants for plane curves computed
in terms of Saito bases.
