At the dedication of the wall of Jerusalem, they sent for the Levites wherever they lived and brought them to Jerusalem to celebrate the joyous dedication with thanksgiving and singing accompanied by cymbals, harps, and lyres.
References for Nehemiah 12:27
The singers gathered from the region around Jerusalem, from the villages of the Netophathites,
from Beth-gilgal, and from the fields of Geba and Azmaveth, for they had built villages for themselves around Jerusalem.
After the priests and Levites had purified themselves, they purified the people, the gates, and the wall.
Then I brought the leaders of Judah up on top of the wall, and I appointed two large processions that gave thanks. One went to the right on the wall, toward the Dung Gate.
Hoshaiah and half the leaders of Judah followed:
Azariah, Ezra, Meshullam,
Judah, Benjamin, Shemaiah, and Jeremiah.
Some of the priests' sons had trumpets: Zechariah son of Jonathan, son of Shemaiah, son of Mattaniah, son of Micaiah, son of Zaccur, son of Asaph,
and his relatives: Shemaiah, Azarel, Milalai, Gilalai, Maai, Nethanel, Judah, and Hanani, with the musical instruments of David, the man of God. Ezra the scribe went in front of them.
At the Fountain Gate they climbed the steps of the city of David on the ascent of the wall [and went] above the house of David to the Water Gate on the east.
The second thanksgiving procession went to the left, and I followed it with half the people along the top of the wall, past the Tower of the Ovens to the Broad Wall,
above the Gate of Ephraim, and by the Old Gate, the Fish Gate, the Tower of Hananel, and the Tower of the Hundred, to the Sheep Gate. They stopped at the Gate of the Guard.
The two thanksgiving processions stood in the house of God. So [did] I and half of the officials accompanying me, as well as
the priests: Eliakim, Maaseiah, Miniamin, Micaiah, Elioenai, Zechariah, and Hananiah, with trumpets;
and Maaseiah, Shemaiah, Eleazar, Uzzi, Jehohanan, Malchijah, Elam, and Ezer. Then the singers sang, with Jezrahiah as the leader.
On that day they offered great sacrifices and rejoiced because God had given them great joy. The women and children also celebrated, and Jerusalem's rejoicing was heard far away.
References for Nehemiah 12:43