To musically trained people, this is so weird. From the page:

"Imagine singing a melody to create a horn line, transforming chords from a MIDI keyboard into a realistic vocal choir, or adding an instrumental accompaniment to a vocal track."

This is what composers do! It's not hard, it requires a journeyman level of skill and training. I guess it will change how non-musicians create really bad music though?

I'm not saying it's not a game changer - the crappy library music world is running on borrowed time. But positioning this as revolutionizing music production is just bizarre. It's not solving the problems that one faces trying to write good music - it's just making the simplest steps faster. And only significantly faster for the untrained.