Since their Grammy-winning recording in the early 1990s, Le Mystère des Voix Bulgares (The Mystery of the Bulgarian Voices) has connected audiences around the world to the ancient voice of Bulgaria?s musical heritage with their rich, gorgeous timbre, surprising harmonies, and effortless precision. Yet the true mystery of their vocal prowess lies in the romance, magic and celebration that have long fired traditional music in Bulgaria. The group tours the U.S. this November and December with a special program that includes traditional favorites, fresh repertoire, and holiday songs.

Chicago-area concerts: December 8 and 9 at 8 pm
St. John of Rila Bulgarian Church, 5944 West Cullom Avenue
Tix: $30 (advance), $35 (day of); www.smarttix.com