I tried to leave this comment on YouTube, but for whatever reason it did not get posted. If I could make a suggestion for the videos, some people (myself included) have reduced selective auditory attention, or in simple terms, it is difficult focus on certain sounds while there are other sounds in the background. In my case, having two people talk to me at once makes it sound the same as if I’m in a crowded room of people talking.
If you could experiment with reducing the volume of the background music in the videos, or eliminate it entirely, it would be helpful to some of your followers to focus on what you are explaining. Thanks!