Thanks for listening!
Tuckerkao, I probably used most but not all keys. I used the lowest A up to the highest A-sharp. I really like to use as much of the piano as possible when I improv.
Many of my improvs tend to be very well grounded in structure, something which I think gives much more substance to the music. It helps the listener organize the sounds which are being taken in. Even when I try to be archaic, people have told me I still gave good structure to my improv.
This particular one has the main idea in section A, the main idea with accompaniment subdivided into tripplet 8ths in section B, further subdivision of accompaniment into sixteenths in section C, followed by recap of A for the closing.