This band used Facebook Live's lag to loop their song

[McGreens]

Saw this yesterday and whilst I didn’t care for the song it’s seriously impressive.

@jtoddleffar

How did they prevent the previously recorded audio from playing over itself in each subsequent layer and creating a cacophonous mess?

They didn’t - that’s the whole point.

@jtoddleffar

While there are definitely people smart enough to figure out the logistics involved with this on their own, the cynic in me can’t help but think that some entity bigger than the band (e.g., Facebook) approached them with this idea and helped them execute it as if it were their own.

You may be right, and I was wondering how they managed it too, but it’s probably just practice and experimentation. Record the individual components and loop them, play around with the order then get the timing right. Or something.