We had a guy in our area by the name Joe Keys. My wife and I don't go out too often but from time to time, we go out to support other trio/duo/single acts in our area. This had to be around 2003. He played MIDI files from a computer and pretended to play along on his "turned down" keyboard. He had a double tier stand (Apex Column Stand) with a keyboard on 1 and the computer on 2. He did put some kind of board to block the audience's view of his "playing" skills.

Funny thing was, every time he played a glissando, and it was a lot, we never heard a glissando.

There are a lot of people who want to be something, but just aren't there yet!