1 Chronicles 25:1, 3

David and the officers of the army also set apart some of the sons of Asaph, Heman,  and Jeduthun, who were to prophesy  accompanied by lyres, harps, and cymbals.  This is the list of the men who performed their service

From Jeduthun:  Jeduthun’s sons: Gedaliah, Zeri, Jeshaiah, Shimei,  Hashabiah, and Mattithiah — six — under the authority of their father Jeduthun, prophesying to the accompaniment of lyres, giving thanks and praise to the LORD.