In the plaza area in front of Central World on Rachadamri road there is a world music festival entitled "World Music and World Bar-B-Q. There seems to be a good mix of music, and the food stalls are quite reasonable. There is food from a variety of countries, and a load of Thai food stalls also.
I spent a couple of hours there this evening (Wednesday) and it was quite enjoyable. The youngsters in the first pic below are all deaf kids from north Thailand. Great to see them enjoying dancing, the choreographer in front indicated to them the movements and when to make them.
Just thought I would let you know whats happening in central Bkk this weekend.