The double psaltery had two ranks of strings, one on either side of the soundbox.King Nebuchadnezzar commanded everyone that at the sound of the cornet, flute, harp, psaltery, dulcimer and all kinds of music they should fall down and worship the golden image.Some of the Jaufre Rudel pieces are unaccompanied too, but even those in which the psaltery or harp make an appearance use these instruments