Music and music reproduction i.e. audio have always been very important to me. Maybe because I've never (really) learned to play an instrument? Who knows.
However–I've always been involved into more or less weird audio related projects such as publishing (and editing and writing and designing etc.) an audio mag named "HiFi Scene Schweiz" back in the 90s. Or inventing and organising the European Triode Festival, better known as "ETF". Or, last but not least, designing and soldering harebrained circuits with obsolete active elements such as vacuum tubes.