The works of this crafty composer and singer - alternately witty and poignant - appear alongside those of Machaut, Hildegard of Bingen and Bach in this cleverly devised concert, part of the Music Mondays series. Ms. Soper is joined by two other sopranos, Gelsey Bell and Brett Umlauf, as well as the flutist Erin Lesser, the percussionist Ian Antonio and the violinist Joshua Modney.