Does anyone have a copy of the Minute Marker tape produced by Brayton and Sons Productions in the early 90's? It was a twenty-minute timer on a tape. There were different drum sounds for fifteen, thirty, and forty-five seconds past each minute, then each minute had claps counting the minutes. One side had a tick every second along with all the other sounds, the other side omitted the ticks. I never had or even saw a copy of the tape, all I ever heard was a promo for it he put in Playback Magazine, audio attached.