II Chronicles 29:27 Halakhah

וַיֹּ֙אמֶר֙ חִזְקִיָּ֔הוּ לְהַעֲל֥וֹת הָעֹלָ֖ה לְהַמִּזְבֵּ֑חַ וּבְעֵ֞ת הֵחֵ֣ל הָֽעוֹלָ֗ה הֵחֵ֤ל שִׁיר־יְהוָה֙ וְהַחֲצֹ֣צְר֔וֹת וְעַ֨ל־יְדֵ֔י כְּלֵ֖י דָּוִ֥יד מֶֽלֶךְ־יִשְׂרָאֵֽל׃

And Hezekiah commanded to offer the burnt-offering upon the altar. And when the burnt-offering began, the song of the LORD began also, and the trumpets, together with the instruments of David king of Israel.

Read halakhic rulings (Jewish law) on II Chronicles 29:27: and classical halakhic sources.