The Jewish Federation of Greater Philadelphia and Uru Akhim will stage a benefit concert at the Congregations of Shaare Shamayim in Northeast Philadelphia.  The concert will feature pianist Chih-Long Hu and soprano soloist Sharon Cheng performing the music of Chopin, Rachmaninoff and Stravinsky.  Advance tickets are $20 per person, $25 per person at the door.  Proceeds from the event benefit United Hatzalah-Israel.