1 Chronicles 25:6-7

25:6 All of these were under the supervision of their fathers; they were musicians in the Lord’s temple, playing cymbals and stringed instruments as they served in God’s temple. Asaph, Jeduthun, and Heman were under the supervision of the king. 25:7 They and their relatives, all of them skilled and trained to make music to the Lord, numbered two hundred eighty-eight. ¹ 

[25:7]  ¹ tn Heb “and their number with their brothers, trained in music to the Lord, all skilled, was 288.”