Wow. I had never heard of that. Thanks.
If you look, there is an article titled “Neanderthals Sang Like Sopranos,” I believe.
And now for the woo-woo factor ...
While the standard theory of dating Egyptian Old Kingdom artifacts and specifically the complex at Giza date to only 2800 BC or so there is some evidence (mostly suppressed, as is much about the Old Kingdom) that the structures are far older - in the range of over 20,000 BC at the earliest (climate modeling and Nile river position). This puts both the complex at Giza and the Neanderthal late disappearance date close. I only mention this because most people do no know that the Pyramids at the complex are resonate structures such that when inside, vocal tones become ever-varying songs ...
“The Universe is not only queerer that we suppose, but queerer than we can suppose.” - J.B.S. Haldane