The YouTube sound is appalling, but...

Turkish Alevi aong (the title means "Millennium Song")

... I suspect that really IS what it sounded like. Holy Moses.

I have NEVER seen that many people attempting to do the same song. (The World's Biggest Pipe Band, done annually in Edinburgh for a cancer charity, is strung out in a mile-long line so doesn't attain quite such levels of concentrated godwhataracketness).

I think I can wait for 1000 years before hearing another attempt.