וְהַלְוִיִּ֣ם הַמְשֹׁרֲרִ֣ים לְכֻלָּ֡ם לְאָסָ֡ף לְהֵימָ֣ן לִֽ֠ידֻתוּן וְלִבְנֵיהֶ֨ם וְלַאֲחֵיהֶ֜ם מְלֻבָּשִׁ֣ים בּ֗וּץ בִּמְצִלְתַּ֙יִם֙ וּבִנְבָלִ֣ים וְכִנֹּר֔וֹת עֹמְדִ֖ים מִזְרָ֣ח לַמִּזְבֵּ֑חַ וְעִמָּהֶ֤ם כֹּֽהֲנִים֙ לְמֵאָ֣ה וְעֶשְׂרִ֔ים מחצררים [מַחְצְרִ֖ים] בַּחֲצֹֽצְרֽוֹת׃
also the Levites who were the singers, all of them, even Asaph, Heman, Jeduthun, and their sons and their brethren, arrayed in fine linen, with cymbals and psalteries and harps, stood at the east end of the altar, and with them a hundred and twenty priests sounding with trumpets—
The Third Beit HaMikdash
Targum Yonason interprets the hagederes haginah1Yechezkel 42:12. as “the platform (duchan) of the Levites.” The term gederes implies a structure, a geder (“partition”), of stones on which the Levites would play their instruments and sing. This platform was “on the eastern way,” for the duchan was in the eastern portion of the Courtyard, as stated in the passage in Chronicles that describes the completion of the building of the First Beis HaMikdash:2II Divrei HaYamim 5:12. “The Levites of whom all were singers, of Asaf… stood at the east of the Altar.”