Revelation 14:2-3

And I heard a voice out of Heaven, as a voice of many waters, and as a voice of great thunder; and the voice which I heard was as that of harpers, harping with their harps.

Revelation 15:2-3

And I saw as it were a glassy sea mingled with fire; and those who were victorious over the beast, and over his image, and over the number of his name, standing by the glassy sea, having harps of God.

Treasury of Scripture Knowledge

Summary

The singers went before, the players on instruments followed after; among them were the damsels playing with timbrels.

Bible References

The players

Revelation 14:2
And I heard a voice out of Heaven, as a voice of many waters, and as a voice of great thunder; and the voice which I heard was as that of harpers, harping with their harps.
Revelation 15:2
And I saw as it were a glassy sea mingled with fire; and those who were victorious over the beast, and over his image, and over the number of his name, standing by the glassy sea, having harps of God.