I've done that with a bluetooth speaker for lessons and it works well enough for those situations. I'm actually doing music streams on Twitch so I want the backing track quality to be better. I'll figure out the best solution eventually!

I'm currently not giving or taking lessons but I've used iReal Pro with students on a few occasions, and I've used it a lot with my teachers both online and in-person. I'll check out the thread and see if I have any ideas to share.

Thanks for the feedback!