Chenaniah
Two men named Chenaniah appear in 1 Chronicles, both Levites attached to David's administration. One is a chief musician with charge of the song; the other is an Izharite set over outward administrative business.
The chief of the song
In the procession of the ark to Jerusalem, the chief of the Levitical singers is named: "And Chenaniah, chief of the Levites, was over the song: he instructed about the song, because he was skillful" (1Ch 15:22). He appears again in the procession itself: "And David was clothed with a robe of fine linen, and all the Levites who bore the ark, and the singers, and Chenaniah the master of the song [with] the singers: and David had on him an ephod of linen" (1Ch 15:27). He is "chief" and "master of the song" — the head of the singers, given charge because he was skillful.
The Izharite officer
A second Chenaniah belongs to the Izharite Levites and stands not over the song but over civil administration: "Of the Izharites, Chenaniah and his sons were for the outward business over Israel, for officers and judges" (1Ch 26:29). He and his sons are placed over the "outward business" — the administrative side, away from the sanctuary — and serve as officers and judges over Israel.