Second InstrumSIU players ental Unit, David Fulmer conductor, will perform works by Margaret Fairlie-Kennedy, Robert Ceely, and Alexandra du Bois at Symphony Space Thalia, in concert #2 of the 2010 chamber music festival of the American Composers Alliance. Also on the program, David Witten and Lawrence Zoernig will perform Richard Cameron-Wolfe's Roerich Rhapsody-Liaison and violist Rudolf Haken will perform Music for Viola and Piano by Matthew Davidson, with Robert Auler, piano.