Revelation 14:2-3

And I heard a sound from heaven like the roar of great waters and the rumbling of loud thunders. The sound that I heard was like that of harpists playing on their harps.

Revelation 15:2-3

Then I saw something that looked like a sea of glass mixed with fire, and standing upon the sea of glass were those who had conquered the wild beast, his statue, and the number representing his name; and they had harps that God had given them.

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 sound from heaven like the roar of great waters and the rumbling of loud thunders. The sound that I heard was like that of harpists playing on their harps.
Revelation 15:2
Then I saw something that looked like a sea of glass mixed with fire, and standing upon the sea of glass were those who had conquered the wild beast, his statue, and the number representing his name; and they had harps that God had given them.