Bored with the humdrum, off-key murmurings that pass for song at your local Shabbat service? Secretly disenchanted with the perky pop tune prayers that have replaced many a heart-wrenching Jewish dirge? Look ye no further: Cantor George Mordechai is in da house of worship. An Australian native and the son of Iraqi Jews, Mordechai brings a blend of Middle Eastern, Indian, Eastern, and Western musical traditions to his Shabbat prayers at Temple Emmanu-El, a.k.a. "The South Beach Synagogue." It doesn't hurt that Rabbi Kliel Rose, the congregation's young, bearded leader, is crazy about Mordechai's music, and holds a note well enough to do back-up vocals, making for a show worthy of kicking off a well-deserved — and Almighty-decreed — day of rest. Services are Friday nights at 7:30 (there is an optional meditation at 7).