Most of you are not far from the truth but as you know the truth is rarely black and white, nor simple.
I have uploaded the same improvisation in WAV.file as some of the comments are beyond my comprehension.
link:
https://app.box.com/s/ikljpv3gghjploozwvhes8m6gxw7mzfp

As promised I will reveal all tonight.

regards,
John

P.S. the remark of my fellow countryman Impulse is a reaction that I would find typical for those playing a lower end Yamaha keyboard, no offence intended.....