2 Chronicles 30:21 MSG

[21] All the Israelites present in Jerusalem celebrated the Passover (Feast of Unraised Bread) for seven days, celebrated exuberantly. The Levites and priests praised God day after day, filling the air with praise sounds of percussion and brass. Hezekiah commended the Levites for the superb way in which they had led the people in the worship of God.