If you want to have a good time and listen to a live concert I think the Charles Eduard bar is a good place to go. I don't know what it's like other days, but the day I went, there was an amateur ve played classics (as Elvis suspicius mind ...) and showed energy on the stage. The bar is small, do not think that there were more than 100 people. Service was good.
The City Bar Lanches, In Campinas, SP, is the meeting point of the artistic, cultural, and bohemian world here. Located in an area of great movement, with very simple tables spread along the sidewalk and beer crates in the entry; None of this stops the intense and faithful presence of its daily visitors. With almost 100 different types of snacks and meals, ranging from the "world's best cod balls" to liver and onions, a delicious codfish, many other treats and desserts for all tastes. The beer is ice cold, and there is always a variety of drinks. There are leaning posts, which make life easier while waiting for a table. If you're in Campinas, it is impossible not to go to City Bar.