Thanks for posting the chart that's very interesting. The piano as we can see here, goes below 20 Herz. I didn't know that. All I did know, is that the standard four string bass guitar is 41 Herz on the low E string I believe or 42.
Right now I'm listening to Beethoven's 5th and 6th Symphonies. My B&W 805 M go down to somewhere in the region of 37 Herz. I can sense the presence of my sub, or hear it but it's not set up in such a way that I notice where those lovely deep sounds come from.
I can see that the Bassoon goes pretty deep, I used to play one of those.