I haven't been there yet, but this is the info I was given. We originally had a dinner ADR at Raglan Road, but decided to go with Wolfgang Puck Cafe instead. We still wanted to check out Raglan Road, and the CM in Disney Dining said there should be no problem to just go in and sit at the bar, order drinks and appetizers, or dessert and Irish coffee -- he loves the place and says he does it all the time. It can be quite crowded however, so I guess it depends on the night you're there how hard it is to get a seat at the bar. The music starts around 8-9 pm, also depending on the night. There is a band that is sort of traditional Irish/rock, and a step dancer who comes out and dances a few sets on a table top near the stage.