The Symphony of the Shores has titled its latest program "An Homage to Janus," and in this case the two-faced Roman god of portals looks backward to Bach and forward to composers Doug Lofstrom and Glen Buhr. Bach is represented by his seldom-heard Concerto for Oboe d'Amore, with soloist Judith Zunamon Lewis. The Canadian Buhr's 1992 Double Concerto for Flute and Harp is said to be an accessible, almost pop vehicle for the increasingly common instrumental pair (here, flutist Darlene Drew and harpist Stephen Hartman of the Shores). Lofstrom, a teacher at Columbia College, characterizes his Concerto for Strings as Bartok-inspired music that progresses in tempo from slow lyricism to frenzied dance; winner of the symphony's composers' competition, it will be performed for the first time at this concert. And mime artist T. Daniel will participate in the last segment, visually interpreting Stravinsky's 1937 concerto for chamber orchestra, Dumbarton Oaks, and the "Choleric" movement of Hindemith's Four Temperaments. Sunday, 7 PM, Pick-Staiger Concert Hall, Northwestern University, 1977 South Campus Dr., Evanston; 708-869-3133 or 708-491-5441.