The best thing about the Manchester Bar's two locations in the Gothic Quarter, and Raval (Valldonzella 40) is the selection of music by greats like Bowie, Radiohead, The Arctic Monkeys and The Talking Heads. The drinks are reasonably priced and the mojitos are great. Opening hours are from 7pm to 3am daily. For a less crowded atmosphere, regulars recommend sitting down for a drink earlier in the evening when you have a moderate chance of scoring a spot on a chair or a sofa.
If you find yourself in Barcelona on a Friday evening, chances are that you might be able to find a neighborhood street party. Look for the right crowd that fits your style. If you are channeling your inner rebel / revolutionist then head to El Poble-sec, an up and coming neighborhood at the foot of Santa - Mountjuic. However, if you are craving a more adult atmosphere and looking for a nice restaurant or bar for afterwards then stick to El Gothic. With an impromptu band performance from the balconies and cozy warm bars serving tapas, El Gothic is a favorite of mine.