Erica Brewster's father was curious to learn what happens when you stuff cabbage into your horn. I assume he meant cabbage, and not Cabbage.
What happens is that the high-fiber content is effective at scouring green goo and Oreo crumbs from your horn's digestive tract. Although the tone quality suffers, the cabbage itself becomes more centered, just the thing for works such as Tchaikowsky's Marche Slaw. In addition, any polyps, horn nuts, and other growths in the first branch will be dislodged.
There is considerable disagreement on how to stuff cabbage into your horn. It is easier to start from the wide end, rather thant he narrow end. (I'm referring, of course, to the wide and narrow ends of the horn. Cabbages to not have wide and narrow ends.) Farkas, of course, preferred to start at the mouthpiece end of the horn, but there are few players who have mastered his particular low-pressure technique. Italian hornists use a specially designed stick, referred to as a "Kohl legno." During the basketball finals of the Olympics,(which for some reason were not conducted behind a screen) the techniques favored by the NBA could be observed. It was, as that great commentator Bill Shakespeare remarked, the stuff that dreams are made of.
I'm through now.
Gotta go,
Cabbage