How to trigger this non-custom BP event I made into the sequencer?

I’ve been researching for days regarding this and found many tutorials that showed how to call a custom event into the sequencer. However, in my case, I made this event graph using a built-in function for the purpose of my animation and I am having difficulty triggering this in the sequence.
I imported the blueprint into the sequencer, clicked on ‘trigger’ in the event list. Set a keyframe where I want to start the event, right click that keyframe and cannot find the even in the quick bind as show below

This blueprint makes the emission parameter of the material change with the audio and it runs smoothly when I simply hit play in the viewport. However, getting this activated in the sequencer seems to be too tricky for me so far, even though I’m sure it must be pretty straightforward and that I am just overlooking something. Hence any help would be appreciated.