'Leader' in the Bible

Mattaniah the son of Mica, the son of Zabdi, the son of Asaph, who was the leader to begin the thanksgiving in prayer, and Bakbukiah, second among his brothers; and Abda the son of Shammua, the son of Galal, the son of Jeduthun.

and Maaseiah, Shemaiah, Eleazar, Uzzi, Jehohanan, Malchijah, Elam, and Ezer. And the singers sang, with Jezrahiah as their leader.