Asaph, the leader of this group, sounded the cymbals. His assistants were Zechariah (the second), then Jeiel, Shemiramoth, Jehiel, Mattithiah, Eliab, Benaiah, Obed-edom, and Jeiel. They played the harps and lyres.
The priests, Benaiah and Jahaziel, played the trumpets regularly before the Ark of God's covenant.
That day David gave to Asaph and his fellow Levites this song of thanksgiving to the LORD:
Give thanks to the LORD and proclaim his greatness. Let the whole world know what he has done.
Sing to him; yes, sing his praises. Tell everyone about his miracles.
Exult in his holy name; O worshipers of the LORD, rejoice!
Search for the LORD and for his strength, and keep on searching.
Think of the wonderful works he has done, the miracles, and the judgments he handed down,
O children of Israel, God's servant, O descendants of Jacob, God's chosen one.
He is the LORD our God. His rule is seen throughout the land.
He always stands by his covenant -- the commitment he made to a thousand generations.
References for 1 Chronicles 16:15