"A smooth linear transition from white noise to sinus wave tone. Title is announced at beginning and at end, but at end, title is announced by a tape played backward." George Brecht, 1962
Two versions of the piece are presented: on side A, Entrance to Exit and on side B, Exit to Entrance — the same composition in reverse. No indication is given in the score with regard to frequency or duration. In this version the oscillator is tuned to 440 Hz (ISO 16).
E(t) = [t]*N + [1-t]*S
Edition of 50 copies