Nehemiah 11:23
"For it was the king’s commandment concerning them, that a certain portion should be for the singers, due for every day."
Cross References (ranked by relevance)
1 Chronicles 9:33
And these are the singers, chief of the fathers of the Levites, who remaining in the chambers were free: for they were employed in that work day and night.
Nehemiah 12:47
And all Israel in the days of Zerubbabel, and in the days of Nehemiah, gave the portions of the singers and the porters, every day his portion: and they sanctified holy things unto the Levites; and the Levites sanctified them unto the children of Aaron.