@Lucas – AKA Weaverskingdom became Archetypon.
To my knowledge his Bric is called Player.
Found here on his site: https://archetypon.net/brics/player/
Original Blocs forum announcement (referencing old site): New bric: Player
Which looks like it allows setting a “Poster Image” for each Audio Track. These Brics don’t say what versions of Blocs they support, so be mindful of that.
If the “Poster Image” is not what you are speaking of, then you would need to use the proper event from the jPlayer library that this Bric uses and code whatever changes you want on said event.
Aside from that, I don’t think the new Interactions Manager in Blocs 6 can tap into 3rd party library API’s as it’s not really meant to expose code — “without requiring additional code”. That would be beneficial though for some users to have access to entry points for doing so.