The musicians Heman, Asaph, and Ethan were to sound the bronze cymbals.

1 Kings 4:31
He was wiser than all men--wiser than Ethan the Ezrahite, and wiser than Heman, Calcol, and Darda, the sons of Mahol. And his fame spread throughout the surrounding nations.

1 Chronicles 15:18
and with them their brothers next in rank: Zechariah, Jaaziel, Shemiramoth, Jehiel, Unni, Eliab, Benaiah, Maaseiah, Mattithiah, Eliphelehu, Mikneiah, and the gatekeepers Obed-edom and Jeiel.

1 Chronicles 15:20
Zechariah, Aziel, Shemiramoth, Jehiel, Unni, Eliab, Maaseiah, and Benaiah were to play the harps according to Alamoth.

1 Chronicles 25:6
All these were under the direction of their fathers for the music of the house of the LORD with cymbals, harps, and lyres, for the service of the house of God. Asaph, Jeduthun, and Heman were under the direction of the king.

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