Nehemiah 12:35, 46

Then came some priests who played trumpets, including Zechariah son of Jonathan, son of Shemaiah, son of Mattaniah, son of Micaiah, son of Zaccur, a descendant of Asaph.

The custom of having choir directors to lead the choirs in hymns of praise and thanksgiving to God began long ago in the days of David and Asaph.