Albert Barnes Commentary 1 Chronicles 15:22

"And Chenaniah, chief of the Levites, was over the song: he instructed about the song, because he was skilful." — 1 Chronicles 15:22 (ASV)

For song - See the margin. Scholars of Hebrew are still divided on the meaning of this passage; some believe it refers to the raising or delivery of the voice, while others think it means the lifting of the ark.