Hey there's also a "batucada" every saturday and sunday, with people playing guittar, drinking, etc.. nearby I go there every sunday to play you can see some of that in the video
Going on weekends is a good option but I think its even better if you go during day time when you can find card readers, chinese people giving you massages, little show, different street artists...
laura u're Awesome !!!!
Quiero mas cosas de Madrid= I want more stuff from Madrid