1 Chronicles 16:41-42
16:41 Joining them were Heman, Jeduthun, and the rest of those chosen and designated by name to give thanks to the Lord. (For his loyal love endures!)
16:42 Heman and Jeduthun were in charge of the music, including the trumpets, cymbals, and the other musical instruments used in praising God. The sons of Jeduthun guarded the entrance.