1 Chronicles 16:4-6

16:4 He appointed some of the Levites to serve before the ark of the Lord, to offer prayers, songs of thanks, and hymns to the Lord God of Israel. 16:5 Asaph was the leader and Zechariah second in command, followed by Jeiel, Shemiramoth, Jehiel, Mattithiah, Eliab, Benaiah, Obed-Edom, and Jeiel. They were to play stringed instruments; Asaph was to sound the cymbals; 16:6 and the priests Benaiah and Jahaziel were to blow trumpets regularly before the ark of God’s covenant.

1 Chronicles 16:41-42

16:41 Joining them were Heman, Jeduthun, and the rest of those chosen and designated by name to give thanks to the Lord. (For his loyal love endures!) 16:42 Heman and Jeduthun were in charge of the music, including the trumpets, cymbals, and the other musical instruments used in praising God. The sons of Jeduthun guarded the entrance.