restaurants and entertainment in Budapest

We are leaving for a river cruise next week and will be 3 nights pre-cruise in Budapest. We will be staying at the Parlament Hotel near the Parliament building.I wanted to see the folk music and dance show but the show is not performing the nights we will be there. I was also thinking of going to a classical music concert one evening but I couldn't find any..Can anyone suggest the best site to look for these?...any suggestions. Also...what are some of the best restaurants to get traditional hungarian food? Thanks!