I’m curious to see how they do it too.

Presumably if they have Don’t Stop Believing and a separate karaoke karaoke today, they could basically cross fade between them for the adjustment of original singer vocals. And it would work better than trying to remove vocals after the fact.

But that would require both versions, synchronizing them, and KNOWING which two tracks went together.

Is that easier or harder than getting the labels to just give you a special version with an extra channel for vocals?

Hopefully someone digs in and finds out once this is released.