FB> Hmm. I definately wouldn't have come up with that. How do FB> people normally terminate a selection? Or is it just always FB> done with the mouse? If so, why have the default C-space FB> binding at all? What do you mean by terminating a selection? Leaving the usual mouse-way aside, typing C-space and moving the cursor anywhere in the sound makes a selection: "C-space" ;; set-mark "C-u 0.1 C-f" ;; move 0.1 second forward The effect should be 0.1 second of the sound starting from where you hit C-space is highlighted and made the current selection to do something with, say: "C-x a '(0 0 1 1 2 0)" which should envelope the current selection.