Those who were musicians, the heads of Levite families, stayed in the temple chambers and were exempt from other duties because they were on duty day and night.
We have here a further account of the good posture which the affairs of religion were put into immediately upon the return of the people out of Babylon. They had smarted for their former neglect of ordinances and under the late want of ordinances.
Commenting on 1 Chronicles 9:14-34
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. (i) But were continually occupied in singing praises to God.
1Ch 9:33-34 1Ch 9:33, 1Ch 9:34 contain subscriptions to the section vv. 14-32. Since the enumeration of the Levites dwelling in Jerusalem in 1Ch 9:14-16 began with the Levitic singer families, so here we find that the singers are mentioned in the first subscription, “these are the singers, heads of fathers'-houses of the Levites,” with an additional remark as to their service: “In the cells...
Commenting on 1 Chronicles 9:33-34