We really like Nectar Lounge in Seattle. This place has an amazing patio on the outside, and some of the hottest up an coming bands playing on the stage inside. They have everything from Folk to indie rock to hip-hop. They do live music 6 nights a week, and it is different every night. They also have a great menu, if you just want to go hang on the patio and eat and drink yourself silly. You can check their website to see what shows will be playing while you are in town.