כִּֽי־בִימֵ֥י דָוִ֛יד וְאָסָ֖ף מִקֶּ֑דֶם ראש [רָאשֵׁי֙] הַמְשֹׁ֣רְרִ֔ים וְשִׁיר־תְּהִלָּ֥ה וְהֹד֖וֹת לֵֽאלֹהִֽים׃
For in the days of David and Asaph of old there were chief of the singers, and songs of praise and thanksgiving unto God.
Read midrashic interpretation of Nehemiah 12:46: and classical rabbinic exegesis.