Patient plays saxophone while surgeons remove brain tumor. Music is not only a major part of Dan Fabbio's life, as a music teacher it is his livelihood. So when doctors discovered a tumor located in the part of his brain responsible for music function, he began a long journey that involved a team of physicians, scientists, and a music professor and culminated with him awake and playing a saxophone as surgeons operated on his brain. Source 2q.
I've seen something like this before but the person wasn't playing an instrument they were just awake. What a great idea to get the person to do something requiring certain parts of their brain so they can make a more precise surgery.