כָּל־קֳבֵ֣ל דְּנָ֡ה בֵּהּ־זִמְנָ֡א כְּדִ֣י שָֽׁמְעִ֣ין כָּֽל־עַמְמַיָּ֡א קָ֣ל קַרְנָא֩ מַשְׁר֨וֹקִיתָ֜א קיתרס [קַתְר֤וֹס] שַׂבְּכָא֙ פְּסַנְטֵרִ֔ין וְכֹ֖ל זְנֵ֣י זְמָרָ֑א נָֽפְלִ֨ין כָּֽל־עַֽמְמַיָּ֜א אֻמַיָּ֣א וְלִשָּׁנַיָּ֗א סָֽגְדִין֙ לְצֶ֣לֶם דַּהֲבָ֔א דִּ֥י הֲקֵ֖ים נְבוּכַדְנֶצַּ֥ר מַלְכָּֽא׃
因此，那時各民族一聽見號角、笛、琴、三角琴、瑟，以及各種樂器的聲音，各民族、各邦國、說各種語言的人就都俯伏，敬拜尼布甲尼撒王所立的金像。
Rashi
In view of this in view of this, that they took heed to observe the king’s command concerning this bagpipes would be played.
Ibn Ezra
[Daniel 3:7] Therefore [lit. Corresponding to all this] (כָּל־קֳבֵל דְּנָה - Kol kovel denah): [Meaning] Upon the completion of all this (B'hashlamat kol zeh).
Rashi
at that time At the time that they hear the sound of the music, which is a sign that those who prostrate themselves should come to prostrate, all peoples would fall etc.