Charles Ellicott Commentary Ezra 2:40

"The Levites: the children of Jeshua and Kadmiel, of the children of Hodaviah, seventy and four." — Ezra 2:40 (ASV)

The Levites: the children of Jeshua. —Then follow the Levitical families, not priests: that is, the Levites proper, the singers, the door-keepers or porters.

Of the first, there were only two families, and these are both traced up to one, that of Hodaviah or Judah (Ezra 3:9) or Hodevah (Nehemiah 7:43). The hereditary choristers are also few: of the families of Asaph, Heman, and Jeduthun, the first alone is represented. Nehemiah makes their number twenty more, but 1 Esdras agrees with the text of Ezra.