Ah, Jeff Lorber. He used to teach jazz in Vancouver WA back in the 70's at the local community college and we could see his band play during the Wed lunch breaks.
I remember a friend put lip balm on one of the keys on the fender keyboard in front of the whole class before Jeff walked in to start to teach that day. He came to a halt right in the middle of a song when he hit that key and no one would tell him who did it or what it was...