Matthew Poole and continuators on Ezra 2:65

65 Besides their servants, and their maids, of whom there were seven thousand three hundred thirty and seven: and there were among them two hundred singingmen and singing-women .

For Women as well as Men were devoted to, and employed in this exercise in the Temple-Service, as appears from 1 Chr. 25. 5, 6. And the Parents of these Persons had taken care to instruct and exercise them as far as they could in this Art, both for Gods service, and for their own benefit, when Ierusalem and the Temple should be rebuilt; which they knew would be done after Ieremiahs 70 years were expired.