Don, I think that would be the flatted 5th. If you knew that that was wrong it would actually be a goof-up or a mistake not an accidental. If you had no clue as to what you were doing, that's what is known as an unlearned music tinkerer. Of course, I know you are just putting me on as I am now doing to you. Ha ha!

When I gigged with you, the only two mistakes you made that I could tell, was playing “Yakety Sax” setting the tempo at 2000 BPM, which is excessively fast for any sax player. Only an experienced keyboardist could play that tune that fast. That was mistake #1.

Mistake #2 was when we finished your gig and you took me to the hottest nightclub in town and made me get up to play with a group of real musicians that I didn’t even know existed. I think they didn't appreciate that either even though they were polite. I owe you one for that ("FRIEND")

Tell Susan and the young men I said hello, and give them my best EH?