'Harpers' in the Bible

And I heard a voice from heaven, as the voice of many waters, and as the voice of a great thunder: and the voice which I heard was as the voice of harpers harping with their harps:

And the voice of harpers and minstrels and flute-players and trumpeters shall be heard no more at all in thee; and no craftsman, of whatsoever craft, shall be found any more at all in thee; and the voice of a mill shall be heard no more at all in thee;