Currently reading Saul Herzog's Lance Spector series, thanks to a gift of Kindle Unlimited. His plots have twists and turns reminding me of Ludlum as the books progress.
What is the link? I would guess that people who actually can read music and perform music might have an edge. Then again, my mother in law was a church choir singer and slid down the dementia track. It seems there are a lot of variables with this.