Jazz piano Puns

So I'm concussed during my high-school rugby game, after which we head to the hospital. Important to mention that I was a member of my school's jazz band, and had a concert coming up. I get checked out by the doc, minor concussion. He's going over the stuff with my dad on what to watch out for (be careful with naps, no contact sports for a while etc.) and my dad asks if I'd be able to play the trumpet in next week's concert. The doc says he thinks it might not be the best idea. So my dad asks, will he at least be able to play the piano? Doc replies that yes, I'd be able to play the piano.
"That's great, he wasn't able play it before the concussion!"
Took a second for the doctor to realize what happened, after which he seemed to sigh with exhaustion and laughed.