1993 - a friend was listening on headphones to some binaural nature recordings I'd just made, and she pulled off the 'phones and asked simply: "Do you have any music recorded this way?"

Thus was launched decades of experimenting with various microphone arrays for acoustic music recording that could create a semblance of that "you are there" spacial realism of binaural on headphones, but still big and enveloping on loudspeakers. The closest I've come is the 'Onno Double AB'.