All these were under the hands of their father for song in the house of Yahweh, with cymbals, psalteries, and harps, for the service of the house of God; Asaph, Jeduthun, and Heman being under the order of the king.
according to the king's order, to Asaph, Jeduthun, and Heman; who ordered and directed them what to sing, what tunes to make use of, and what instruments to play upon to those tunes.