I found this question:
How can I find out which tab is playing music?
but it is an old question that does not solve my problem, which is very similar - or even the same - but the answers there do not work.
I am using this version of Chrome:

I normally have many chrome sessions open.
for example:

and here on the task bar:

and here a partial view of the task manager:
So I have a youtube session somewhere playing a documentary on Magellan navigation to the East but I cannot find it.
My computer crashed and after restarting, I started Chrome - restored to the previous sessions - there were lots of them, but I cannot find this particular one. I don't even know if it is active, or just the sound is playing.
How to find out what session is playing sounds, if any?
