shure, if you want such a structure, you may be right (although I am surprised sometimes how themes come back without me remembering them).** then you've remembered them, no? ;-)But I observe that I dont need this structure as a listener. Most musicians teach me that its necessary for understanding, but I am not sure.In the last century, we got rid of so many cages, music without melody, without rhythm, without tonal scale, without tonal center was explored, but hardly music without "structure", but I may be totally wrong here...** well, structure is only one tool/possibility. in my experience, many people who improvise negect form as a basic building block; they seem to concentrate on other things more. in fact, many who do "free improv" seem to be "against" tonality, rhythm or form - - to which i say, "what's free if i can't do that?"I think the atitude is important: I find it much different to repeat some cliche because it just comes up, or to repeat it because I think its smart or necessary or different or whatever.** are we talking about one's own cliches, or those of others?I wonder how the new technology with non volatile memory for lots of loops influences this.The memory can be used to save the "cliches", or to free you from the effort (distraction?) to remember the theme (once you want to do such structured music).** well i sometimes use loopers to put in a spontaneous theme and fly it back in at "appropriate" times.You save a loop and bring it back the next night, save another line with it and such make the composition richer each time you improvise it...** that's more of a composition with improv than it is free improv, no?stig