I Chronicles 15:17-19

So the Levites appointed Heman the son of Joel; and of his brethren, Asaph the son of Berechiah; and of their brethren, the sons of Merari, Ethan the son of Kushaiah; and with them their brethren of the second rank: Zechariah, Ben, Jaaziel, Shemiramoth, Jehiel, Unni, Eliab, Benaiah, Maaseiah, Mattithiah, Elipheleh, Mikneiah, Obed-Edom, and Jeiel, the gatekeepers; the singers, Heman, Asaph, and Ethan, were to sound the cymbals of bronze