Summertime - jazz piano tutorial

This is a tutorial on playing George Gershwin's 'Summertime'.
There are so many ways to play this - sometimes, if it is called at a jam session it can be a disaster if not discussed before! Here I have played it through three times each with a different style, and using different chords.
I have uploaded the video to my website http://www.bushgrafts.com and a transcription is