Hard to discern what's happening in that vid, Pipeline
The goal is to have playing midi tracks with outputted chords.
But the only Midi track showing in your mixer is vibes, and there's no volume coming from it, so it appears that no midi track is playing. I hate to get so specific, but the corruption of my Tascam 144 (not Yamaha, my error) audio driver on the uninstall of Midi Ox, I would like a working roadmap to this.

So if Loopmidi alone...can allow BIAB to output Midi tracks WITH outputted chords, I need a detailed key to that kingdom spelled out. Here's the LoopMidi instructional. If someone is game to figure out the BIAB interface to this, here ya go....

https://www.youtube.com/watch?v=oGRtBNTNXP0
Thanks.