WEB
The men did the work faithfully: and their overseers were Jahath and Obadiah, the Levites, of the sons of Merari; and Zechariah and Meshullam, of the sons of the Kohathites, to set it forward; and others of the Levites, all who were skillful with instruments of music.
YLT
And the men are working faithfully in the business, and over them are appointed Jahath and Obadiah, the Levites, of the sons of Merari, and Zechariah and Meshullam, of the sons of the Kohathite, to overlook; and of the Levites, every one understanding about instruments of song,