You're just too much and considerate Robert! LOL. I was not that far away; just learning to lurk in the shadows and getting used to having my "MIC settings" on mute for a change... :)
I like your sense of humor! 😁 — "Let your smile change the world, but don't let the world change your smile." 🙂🍻
Your best bet for good info is to go straight to the source: https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API/Visualizations_with_Web_Audio_API --> Have fun!