'Singing men' in the Bible

I am this day fourscore years old: and can I discern between good and evil? can thy servant taste what I eat or what I drink? can I hear any more the voice of singing men and singing women? wherefore then should thy servant be yet a burden unto my lord the king?

And Jeremiah chanted a dirge over Josiah, and all the singing men and singing women in their dirges have spoken concerning Josiah, until this day, and they appointed them by statute for Israel, - and, there they are, written among the dirges.

besides their male and female servants who numbered 7,337; and they had 200 singing men and women.

besides their servants and their maids, of whom there were seven thousand three hundred and thirty-seven; and they had two hundred and forty-five singing-men and singing-women.

I heaped me up, both silver and gold, and the peculiar treasure of kings, and provinces, - I provided me singing-men and singing-women, and the delights of the sons of men, a wife and wives.