' Sister, Brother to Play with American OrchestraFor the final program in the Illinois music project’s young artist series tomorrow evening, the soloist with the American Concert orchestra will be 16-year-old Albert Shlay, violinist, and his 12-year-old sister, Beatrice, a pianist.Albert will play Bruch’s concerto No. 1 m G minor and Beatrice will play the Mozart piano concerto No. 22. The concert will be heard at 632 N. Dearborn st. Ralph Cissne will conduct._