I would like to show 4 tracks on the product page. These 4 tracks are going to be different 4 each product.

Following this article: https://sonaar.io/docs/using-player-with-dynamic-custom-fields-for-acf-jetengine-and-metabox/

I have created fields for tracks, see this screenshot: https://www.screencast.com/t/3ORk6Pv8

And edited Elementor product page to show on all product page, see this screenshot: https://www.screencast.com/t/xCdGwavW

But that did not work.

Can you please give me more information on what do I select on the csutom field here: https://www.screencast.com/t/3ORk6Pv8 and is my setup on Elementor correct or not?

Thanks,