So is this article just referencing musician Glenn Kurtz and TED-ed animation? It would be nice to have the actual research papers linked somewhere too on which

So is this article just referencing musician Glenn Kurtz and TED-ed animation? It would be nice to have the actual research papers linked somewhere too on which these assertions are based on. I mean sure it is plausible that playing instrument benefits the brain just like any activity that exercises it like chess, poker maybe even video games. But how big of an effect it actually is? It's never mentioned on the article nor the video. I'm curious how this even made to the front-page.