Charles Ellicott Commentary 2 Chronicles 29:14

"and of the sons of Heman, Jehuel and Shimei; and of the sons of Jeduthun, Shemaiah and Uzziel." — 2 Chronicles 29:14 (ASV)

And of the sons of Heman. — Two Levites of each of the remaining musical guilds—the Kohathite Hemanites and the Merarite bnê Jeduthun (Ethan)—are finally named, making up, with the preceding pairs, a total of seven pairs, or fourteen principal men of the Levitical order (Compare to 1 Chronicles 6:18–32).

Jehiel. — Repeated (2 Chronicles 31:13).