I personally would send a smile to Kayah ... I like her maybe more from the old records but I think she has a great voice and such a image
There were some good songs performed by Anita Lipnicka, and of course old DZEM with Ryszard Riedel

there are some good polish jazz-rock sessions musicans like Waldemar Lewandowski, Marek Surzyn or Jerzy Antoszkiewicz -who ever been on "Zlota Tarka " festival knows what I am talking about
I remember also about Leszek Mozdzer - but in that case I have quite mixed feelings.
And there is plenty of good names nobody mention yet