I haven't really been keeping up with world music of late,but WOMAD is great for Internationalism and there's bound to be some great acts who nobody has heard of.
My son is already there,gone with his mates' family-he's really looking forward to doing lots of drumming workshops from different cultures.He's at that great age where he just swallows things whole,and really gets into wherever he is.Wish I could be like that...