What does 2 Chronicles 5:12 mean?

and all the Levite musicians—Asaph, Heman, Jeduthun, and their families—stood on the east side of the altar, dressed in fine linen and playing cymbals, harps, and lyres. They were joined by 120 priests blowing trumpets. 2 Chronicles 5:12 - Modern Text Bible

(The musicians and singers, dressed in their best, played together with a huge group of priests, creating a powerful and joyful sound.)