Not sure what piano bar you're referring to. There's a couple that are actual bars, but not restaurants. One is Ernie Biggs in Westport, and the other is Howl at the Moon in the downtown bar district. Both are fun, but if you're going out I'd choose Westport over downtown. Westport and The Plaza are where you should be if you want to have fun at the bar scene. I'm not sure what I'm up to this weekend yet, but there's generally a high probability that I make it to one of those two areas.