John Gill Commentary 2 Chronicles 29:26

"And the Levites stood with the instruments of David, and the priests with the trumpets." — 2 Chronicles 29:26 (ASV)

And the Levites stood with the instruments of David Which were invented, directed, and ordered to be used by him, and are the same as in the preceding verse:

and the priests with the trumpets ; which were made by the direction of Moses, according to the order of God, (Numbers 10:2) .