Shebaniah, and Joshaphat, and Nethanel, and Amasai, and Zechariah, and Benaiah, and Eliezer, the priests, did blow the trumpets before the ark of God: and Obed-edom and Jehiah were doorkeepers for the ark.
They played, of course, a psaltery; whatever type of instrument that was. And with harps; whatever a harp was in those days.