||The contents of this article or section are considered to be non-canon and therefore may not have actually happened or existed.
The Sour Note is the supervillain alter-ego of Dewey Largo.
When The Sour Note was robbing King Toot's, Bartman went to stop him. However, The Sour Note had a hypnotized marching band army which he used his Sousa-Phone to control. Gil Gunderson, who was a ghost at the time, accidentally distracted Bartman and got him trampled by the marching band.