I can definitely relate to that organist pressing the "clear" button after playing. The organist at my church had an incident occur during a service one time because of settings and memories that were not cleared. We have a Kurtzweil Mark 10 electronic synth/organ. One of the kids from the youth group was in the service before it started practicing playing. He was using the MIDI sequencer in it to record his playing, and then listen to it back. One of the songs he played was the Star Wars theme song. Only, he forgot to clear it out of memory after he was finished. The organist, who was not very savvy in the modern electronic units, then came in and played the music for the service. Thinking the organ was in a different mode, she pressed a button in the middle of the service that unleashed that Star Wars theme song in full volume during a calm, somber part of the service. I was on the sound board at the time, and noticed the foul-up. I instantly muted the audio feed from the organ, while she frantically pushed buttons, and finally resorted to the on/off switch to get it to stop playig on it's own!!!