Tomorrow (last Sunday) is engineering day at the Exploratorium (http://www.exploratorium.edu/visit/faq with the next free day on Sunday, October 12th), another free day ... may head there ... nice to see you on the road in passing ... and happy belated birthday!
Guitar four-hands? Now, wait a minute ... cross-handed, too :) Lovely music, as well ... "İşte Gitarı Konuşturmak Ben Buna Derim" - http://www.dailymotion.com/video/xaavt9_yyte-gitary-konuyturmak-ben-buna-de_music ... worth re-visiting :) Joyeux anniversaire!
The video link didn't show; but the audio came through ...
The email only had the number " 1 " ?
When only audio comes thru, the duality of the audio and video as well as the duality of the man and woman co-blissing by playing guitar four-hands into one sound on one guitar becomes oneness = 1