You’re in bumper-to-bumper traffic on your morning commute, glancing anxiously at the clock and running through your mental to-do list, when suddenly you recognize the opening notes to one of your all-time favourite songs. As you reach for the volume button on your car stereo, you feel your mouth begin to shape the words without any apparent direction from your brain. Your feet automatically tap along with the irresistible rhythm while your mind wanders back to a moment, ma