AB Browser audio player

Hey, does anybody know of an audio player in the browser that lets you A/B two tracks? It would be awesome to have a player where you can enable/disable a plugin for a quick A/B test, but I don’t know of any that do this. I know I’ve seen it done, so I must just be looking in the wrong place or using the wrong search terms.

If this site is made with Wordpress, there is a plugin I heard of:

But I have no experience of it myself.


Ah, that one is super basic, but might be exactly what I need.