Schroeder (Peanuts) and Lucy and Snoopy comes out of nowhere and starts dancing on the piano, until Schroeder and Lucy start looking at him angrily and Snoopy stops dancing and looks embarrassed. Frieda sometimes leans against Schroeder's piano, making Lucy jealous. She does not seem to be much of an annoyance to him as Lucy, but Schroeder prefers Lucy over her, possibly because Frieda has no knowledge of classical music at all (in "Play It Again, Charlie Brown" she thought Beethoven was a drink, causing Schroeder to pull the piano out from under both her and Lucy). The piano's capability is illustrated
Schroeder (Peanuts) Lucy van Pelt, who constantly leans on Schroeder's piano, much to Schroeder's annoyance. Charlie Brown, Frieda and Snoopy are also occasionally depicted as leaning on Schroeder's piano. After Linus and Snoopy, Schroeder is probably Charlie Brown's closest friend; he once angrily berated Violet for giving Charlie Brown a used valentine well after Valentine's Day had come and gone, only to be undercut when Charlie Brown eagerly accepted it. Schroeder also joined Linus in chastising the girls (Lucy, Patty, Violet and Frieda) and Snoopy in "Charlie Brown's All-Stars", when it was discovered Charlie Brown refused to remove the girls and Snoopy