P.S. Johan used to play trumpet in an orchestra when he was young, and he loves music. So he was curious to see me play drums and to discover what a difficult world it is for an ordinary person (but we know, right?). And on top of that, Johan kindly gave me a lesson, after which I spent my day off at the billiard table for 6 hours — working with one ball, then two… It was painfully useful!