Tact in David's Popular Methods in Organizing the Temple Music
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1 Chronicles 15:16–24
David also told the leaders of the Levites to appoint their relatives as singers to lift up their voices with joy, accompanied by musical instruments—harps, lyres, and cymbals. / So the Levites appointed Heman son of Joel; from his brothers, Asaph son of Berechiah; from their brothers the Merarites, Ethan son of Kushaiah; / 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.