it sounds so creepy

It's borderline terrifying. Reminds me of those terror-clown video games at old arcades.

Indeed. I almost don't see the point other than to show off amazon turk :/

If zombies could sing.

Seriously, part of choral performance is you (as a singer) need to constantly adjust your pitch and timing with others to produce harmonious output.

This would be far more interesting if such an effort could be done based on the individual samples by manipulating the audio in real-time.

Autotune the samples? Lots of software available to do that, but then you get "Intensive Hair Unit" https://www.youtube.com/watch?v=8coX8VkUKY8

I think Bicycle creator's intent was more to demonstrate the "Musical Talent of the Crowd" - the creepiness was a bonus.

Autotune should sound less odd if the correction is relatively small.

Great song for a futuristic dystopian movie where AI's have taken over.

Audio version of uncanny valley?