1 Chronicles 25:6-8 (New International Version)

 ⁶ All these men were under the supervision of their fathers for the music of the temple of the LORD, with cymbals, lyres and harps, for the ministry at the house of God. Asaph, Jeduthun and Heman were under the supervision of the king. ⁷ Along with their relatives—all of them trained and skilled in music for the LORD -they numbered 288. ⁸ Young and old alike, teacher as well as student, cast lots for their duties.