I am pleased this little improvisation has brought enjoyment to people. What I do is very general, very simple and therefore best explained in simple English instead of musical teminology, which latter I do not properly understand anyway. Anybody can do it at any level of playing ability or experience. I repeat an idea (cell) a few times, but rarely exactly. "Almost periodic" is much more interesting than exactly periodic. Because of the inexact, dynamic nature of the playing, some musical feature of the cell strikes me, often unintentionally, and becomes the "seed" as it were, of the next cell. The nature, musical style and length of a cell are completely arbitrary, and the germinal feature can be any musical aspect - melodic, harmonic, rhythmic or a combination of several.
Over the last few years I have come to think that improvisation needs its own forms, which must be dynamic and organic rather than architectural and static. For this to take place, the "form" is not the resulting organism itself but (musical matter + DNA instruction). Many different musical results, or organisms, can result from the initial combining of musical material and dynamic instruction.
I suppose this could be stated more succinctly as concentrating on processes rather than ends.
Four years ago, when I started seriously recording improvising in this way, I thought such a simple idea would soon lose interest and run out of creative steam. Thirty-three CDs and hundreds of playing hours later, I am now certain it will see me out before I have even scratched its surface.