II-Chronicles

And these are they that waited with their children. Of the sons of the Kohathites: Heman a singer, the son of Joel, the son of Shemuel,

Of Jeduthun: the sons of Jeduthun; Gedaliah, and Zeri, and Jeshaiah, Hashabiah, and Mattithiah, six, under the hands of their father Jeduthun, who prophesied with a harp, to give thanks and to praise the Lord.

Moreover David and the captains of the host separated to the service of the sons of Asaph, and of Heman, and of Jeduthun, who should prophesy with harps, with psalteries, and with cymbals: and the number of the workmen according to their service was:

All these were under the hands of their father for song in the house of the Lord, with cymbals, psalteries, and harps, for the service of the house of God, according to the king’s order to Asaph, Jeduthun, and Heman.

So the singers, Heman, Asaph, and Ethan, were appointed to sound with cymbals of brass;