2CH 5:12

12 Also the Levi'im which were the meshorarim [(singers)], all of them of Asaph, of Heman, of Yedutun, with their banim and their achim, being arrayed in white linen, having cymbals and lyres and kinnorot [(harps)], stood at the east of the Mizbe'ach, and with them a hundred and twenty Kohanim sounding trumpets: