On Thursday Jerusalemite pianist-composer Yitzhak Yedid will reveal the ethnic side to his artistic aspirations when he performs a program of crossover works, together with the Ras Deshen band, at the capital's Confederation House. The multicultural line-up includes longtime Yedid collaborator Ethiopian-born jazz and blues saxophonist-vocalist Abate Barihon, Italian-born singer-percussionist Esti Keinan-Ofri, classically-oriented double bass player Ora Boasson-Horev, and Ethiopian-born percussionist Tagan Zaneba and dancer Tizetah. The show, called "Mizmorei Tehillim" (Psalm Songs), is based on songs and prayers sung by kessim (Ethiopian kohanim) with compositions and arrangements by Yedid, Abate and Keinan-Ofri, with some Ethiopian folk material thrown in. The ensemble will also perform in Haifa and Tel Aviv. Ras Deshen will perform "Mizmorei Tehillim" at Confederation House in Jerusalem on December 22 at 8:30 p.m., Tzavta in Tel Aviv on December 24 at 9 p.m., and at the Tikotin Museum in Haifa on December 29 at 8:30 p.m.