We can all learn something from Peter Muller and the recent decisions that he’s made. As one of Wall Street’s best quant traders, Peter Muller should be working hard. After working incredibly hard for years, Muller decided in 1999 that he needed a break and he went on a sabbatical.

As he told Business Insider, “I became enormously successful, but I wasn’t as happy or fulfilled.” He travelled the world and used his incredible musical talent as a pianist.

When he returned, he managed to find that work/life balance that is elusive to so many. He told Morgan Stanley that he needed room in his life for music as well as business. As he said,

“I took a big step back. And I figured, I’m going to pursue music… I recorded a couple of albums, and I became executive chairman of the group that I built. And I realized that I needed both [music and work] – they both feed and influence the other.”

He’s been performing with his band at least once a month for the last nine years. And while he has a “crazy, busy life” he manages to perform at least once a month and to give the money to charity.

Here is a sample of his work: