Jamieson, Fausset & Brown, on Neh 11:17

“And Mathania the son of Micha, the son of Zebedei, the son of Asaph, was the principal man to praise, and to give glory in prayer, and Becbecia the second, one of his brethren, and Abda the son of Samua, the son of Galal, the son of Idithun.”

“the principal to begin the thanksgiving in prayer--that is, the leader of the choir which chanted the public praise at the time of the morning and evening sacrifice. That service was always accompanied by some appropriate psalm, the sacred music being selected and guided by the person named.”

Imported from an open dataset — not yet checked against the printed edition.