In April of this year I recorded an album in secret on a borrowed piano over the course of a couple of hours. I told no one I was recording it.
Everything was improvised. This video is one of two versions of a song created on the spot for the guest of honor at the party I was invited to as someone's "plus one".
The room acoustics were fantastic, the piano well tuned, and if you listen closely you can hear people talking and setting up in the background.