Adopting a Middle Eastern flavor to enhance her blend of classical and new age pop, Sarah Brightman's Harem continues her experimentation with thematic discs that began with 1993's oceanic Dive. These themes, while never dominant or original, are simply meant to enhance her brand of crossover just enough to keep listeners interested in hearing her next project. Harem accomplishes that feat by shrouding new age pop songs in a thin Middle Eastern veil that disguises, but never completely covers, Brightman's true musical identity…