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) give it to the newest character. The origin of his name can be found in Schulz's 1975 book "Peanuts Jubilee": "Schroeder was named after a young boy with whom I used to caddy at Highland Park golf course in St. Paul. I don't recall ever knowing his first name, but just 'Schroeder' seemed right for the character in the script, even before he became the great musician he now is." From his first appearance at the piano on September 24, 1951, Schroeder has played classical pieces of virtuoso level, as depicted by Schulz's transcription of sheet music onto the panel