Pretty mind blowing stuff.

Can sign up for the waiting list at https://heardsounds.com/

More info: https://holly.mirror.xyz/54ds2IiOnvthjGFkokFCoaI4EabytH9xjAY...

Showcase of Holly+ (related tech by same person(s)) singing the song "Jolene" https://youtu.be/kPAEMUzDxuo

I'm not affiliated, just stumbled on this today.