Ok, here's what actually happened according to Tapas, the videographer. After Tapas stopped shooting the video, Mr. Jarrett continued to jam on Tyros 4 while Peter answered questions. The time was then quickly approaching the 4:30pm time when Martin Harris was to begin his next officially scheduled live internet streaming Tyros 4 demo, so Yamaha personnel chose to escort Mr. Jarrett over to the piano area to show him Yamaha's latest acoustic grands pianos. It clearly wasn't Jarrett losing interest in the Tyros 4, but simply the schedule constraint that ended his enjoyment shown playing it.