The wondrously, supernaturally clear, pure, buoyant voices of Norway’s Trio Mediaeval are ideal not only for early music but for new works drawing on that tradition: the long-spun lines, floating counterpoint, devotional mood, and modal scales that living composers like Gavin Bryars and Ivan Moody have found deeply inspiring. The Early Music Guild is bringing the Trio to Town Hall in conjunction with their new disc, Folk Songs (ECM), which, like their first three, will include repertory from these chronological extremes—with the addition of traditional Norwegian songs, the most beautiful folk music in Europe.

Fri., Nov. 30, 8 p.m., 2007