This is great! I disagree with some of the commenters here that the originals sound better.

The originals sound very much like demos, and from a producer's perspective are very low quality (no offense). They're definitely more raw, but objectively not as good - i.e harmonies aren't tight, the levels are not well balanced, etc.

It's funny that people hate that AI can improve this, because even without AI, modern music uses a ton of digital tools to mix and master - and true musicians don't care whether it's digital or not.

These commenters would be the same people who boo-ed bob dylan when he went electric.

Look at John Mayer - he uses AI to model amps, instead of lugging around giant heavy tube amps.

Question for you - what was the workflow exactly? I've been wanting to test out some AI tools to do similar things with my music.