A precursor of what Rv. describes. Just was part of "no more" do you not understand?
And a mighty angel took up a stone like a great millstone, and cast it into the sea, saying, Thus with violence shall that great city Babylon be thrown down, and shall be found no more at all. (Revelation 18:21)
And the voice of harpers, and musicians, and of pipers, and trumpeters, shall be heard no more at all in thee; and no craftsman, of whatsoever craft he be, shall be found any more in thee; and the sound of a millstone shall be heard no more at all in thee; (Revelation 18:22)
And the light of a candle shall shine no more at all in thee; and the voice of the bridegroom and of the bride shall be heard no more at all in thee: for thy merchants were the great men of the earth; for by thy sorceries were all nations deceived. (Revelation 18:23)
However, if "no more" does not mean "no more," than you can also dispense with that meaning in such verses as,
And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for the former things are passed away. (Revelation 21:4)
It was written during the persecution of Christians by Nero so around the 60s AD and talks of the destruction of Jerusalem in 69 AD
Yes, Jerusalem was destroyed - as clearly stated by Josephus
Rev 8:7 says "a third of the land was burnt up" -- this is the description of what happened during the Jewish war that led up to the destruction of Jerusalem - the first trumpet, the destruction of the land - the scorched earth policy of the Empire
Refer to the writings of Josephus
Truly, the very view itself of the country was a melancholy thing; for those places which were before adorned with trees and pleasant gardens were now become a desolate country in every way, and its trees were all cut down. Nor could any foreigner that had formerly seen Judea and the most beautiful suburbs of the city, and now saw it as a desert, but lament and mourn sadly at so great a change... nor if anyone that had known the place before, had come on a sudden to it now, would he have known it again; but though he were standing at the city itself, yet would he have inquired for it notwithstandingWhat part of "no more" and "desert" do you not understand?
The wars of the Jews by Josephus book 6 chapter 1
the no more music is what happened to Jerusalem in 69 AD