Indulge in some Slavic soul with the Kitka Women’s Vocal Ensemble. Fresh from hunting up a new trove of melody in the Balkans, the women present a Bosnian-Muslim song from the ganga tradition (you’ll have to hear the concert to find out more about that), as well as seasonal songs from around Eastern Europe. The concert schedule ends up with the annual Community Sing, Dec. 22, in which the audience gets to sing along with favorites from Kitka’s Wintersongs songbook.