(Heb menatstseah), the precentor of the Levitical choir or orchestra in the temple, mentioned in the titles of fifty-five psalms, and in Hab 3:19, Revised Version. The first who held this office was Jeduthun (1Ch 16:41), and the office appears to have been hereditary. Heman and Asaph were his two colleagues (2Ch 35:15).
And with them Heman and Jeduthun, and the rest that were chosen, who were designated by name, to give thanks to the LORD, because his mercy endures forever;
And the singers the sons of Asaph were in their place, according to the commandment of David, and Asaph, and Heman, and Jeduthun the king's seer; and the gatekeepers waited at every gate; they did not need to depart from their service; for their brethren the Levites prepared for them.
The LORD God is my strength, and he will make my feet like deer's feet, and he will make me walk upon my high places. To the chief singer on my stringed instruments.