Hadassah to sponsor Etrog Jam performance Etrog Jam will present a mix of instrumental klezmer music and Yiddish theater and Israeli songs in a performance set for April 3 at the East Brunswick Jewish Center 511 Ryders Lane. The event is sponsored by the East Brunswick Chapter of Hadassah. David Goldfarb, Miriam Libove-Goldfarb and Bill Seldin will perform. All are invited to attend.