For more comments see: https://www.designernews.co/stories/51926

Vox Media created something like that for Polygon. http://product.voxmedia.com/2013/11/25/5426880/polygon-feature-design-svg-animations-for-fun-and-profit

You can find metronome here: https://github.com/voxmedia/metronome

I would go with something from the Dell Ultrasharp Series. They have all sorts of options (16:10, wide gamut, 4K, 5K, etc.) so you should be able to find something that meets your needs.

The Apple Thunderbolt Display is pretty old and will probably be replaced soon. Based on the direction Apple has gone with the new Macbook, I think a new Apple USB-C Display is probably coming soon.