Thank you for sharing your experience.

> *Occasionally* it seems to get confused, and start taking me to other tabs that aren't actively playing sound

Can it be because of notification following feature? If there was a sound in a tab within last 10 seconds, it is treated as audible. I think that's the only possibility for it to switch to a tab that is not really audible, assuming default settings.

Or it's a bug I haven't observed yet.