John Gill 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)

And Chenaniah chief of the Levites was for song
But the chief for the song were Heman, Asaph, and Ethan; rather

for the burden ,
as the Targum; for the lifting up and bearing the ark:

he instructed about the song ;
or about the taking up and bearing the burden, the ark; directing when to take it up, and how far to go with it, and then rest:

because he was skilful ;
a wise and prudent man in all things, and so proper to direct in this business.